Home / 153,025.80-211,176.78-85,049.16

Finding the Fourth Proportional to 153,025.80, 211,176.78 and 85,049.16

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Solution

The fourth proportional to 153,025.80, 211,176.78 and 85,049.16 is: 117,368.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,025.80 : 211,176.78 = 85,049.16 : x
  2. Step 2: Convert to fraction form
    153,025.80/211,176.78 = 85,049.16/x
  3. Step 3: Cross multiply
    153,025.80x = 211,176.78 × 85,049.16
  4. Step 4: Simplify right side
    153,025.80x = 17,960,407,750.50
  5. Step 5: Solve for x
    x = 17,960,407,750.50/153,025.80
  6. Step 6: Final answer
    x = 117,368.49

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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.