Home / 115,099.54-158,841.78-66,703.12

Finding the Fourth Proportional to 115,099.54, 158,841.78 and 66,703.12

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Solution

The fourth proportional to 115,099.54, 158,841.78 and 66,703.12 is: 92,052.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,099.54 : 158,841.78 = 66,703.12 : x
  2. Step 2: Convert to fraction form
    115,099.54/158,841.78 = 66,703.12/x
  3. Step 3: Cross multiply
    115,099.54x = 158,841.78 × 66,703.12
  4. Step 4: Simplify right side
    115,099.54x = 10,595,242,312.35
  5. Step 5: Solve for x
    x = 10,595,242,312.35/115,099.54
  6. Step 6: Final answer
    x = 92,052.86

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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.