Home / 102,086.04-140,841.38-61,785.12

Finding the Fourth Proportional to 102,086.04, 140,841.38 and 61,785.12

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Solution

The fourth proportional to 102,086.04, 140,841.38 and 61,785.12 is: 85,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,086.04 : 140,841.38 = 61,785.12 : x
  2. Step 2: Convert to fraction form
    102,086.04/140,841.38 = 61,785.12/x
  3. Step 3: Cross multiply
    102,086.04x = 140,841.38 × 61,785.12
  4. Step 4: Simplify right side
    102,086.04x = 8,701,901,564.27
  5. Step 5: Solve for x
    x = 8,701,901,564.27/102,086.04
  6. Step 6: Final answer
    x = 85,240.86

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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.