Home / 102,214.38-141,057.18-56,279.36

Finding the Fourth Proportional to 102,214.38, 141,057.18 and 56,279.36

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Solution

The fourth proportional to 102,214.38, 141,057.18 and 56,279.36 is: 77,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,214.38 : 141,057.18 = 56,279.36 : x
  2. Step 2: Convert to fraction form
    102,214.38/141,057.18 = 56,279.36/x
  3. Step 3: Cross multiply
    102,214.38x = 141,057.18 × 56,279.36
  4. Step 4: Simplify right side
    102,214.38x = 7,938,607,532.41
  5. Step 5: Solve for x
    x = 7,938,607,532.41/102,214.38
  6. Step 6: Final answer
    x = 77,666.25

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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.