Home / 155,173.68-214,072.20-97,778.16

Finding the Fourth Proportional to 155,173.68, 214,072.20 and 97,778.16

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Solution

The fourth proportional to 155,173.68, 214,072.20 and 97,778.16 is: 134,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,173.68 : 214,072.20 = 97,778.16 : x
  2. Step 2: Convert to fraction form
    155,173.68/214,072.20 = 97,778.16/x
  3. Step 3: Cross multiply
    155,173.68x = 214,072.20 × 97,778.16
  4. Step 4: Simplify right side
    155,173.68x = 20,931,585,823.15
  5. Step 5: Solve for x
    x = 20,931,585,823.15/155,173.68
  6. Step 6: Final answer
    x = 134,891.34

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.