Home / 102,070.29-140,860.61-56,761.13

Finding the Fourth Proportional to 102,070.29, 140,860.61 and 56,761.13

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Solution

The fourth proportional to 102,070.29, 140,860.61 and 56,761.13 is: 78,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,070.29 : 140,860.61 = 56,761.13 : x
  2. Step 2: Convert to fraction form
    102,070.29/140,860.61 = 56,761.13/x
  3. Step 3: Cross multiply
    102,070.29x = 140,860.61 × 56,761.13
  4. Step 4: Simplify right side
    102,070.29x = 7,995,406,407.98
  5. Step 5: Solve for x
    x = 7,995,406,407.98/102,070.29
  6. Step 6: Final answer
    x = 78,332.36

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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.