Home / 103,141.17-142,327.38-57,818.85

Finding the Fourth Proportional to 103,141.17, 142,327.38 and 57,818.85

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Solution

The fourth proportional to 103,141.17, 142,327.38 and 57,818.85 is: 79,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,141.17 : 142,327.38 = 57,818.85 : x
  2. Step 2: Convert to fraction form
    103,141.17/142,327.38 = 57,818.85/x
  3. Step 3: Cross multiply
    103,141.17x = 142,327.38 × 57,818.85
  4. Step 4: Simplify right side
    103,141.17x = 8,229,205,435.11
  5. Step 5: Solve for x
    x = 8,229,205,435.11/103,141.17
  6. Step 6: Final answer
    x = 79,785.85

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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.