Home / 102,110.43-140,909.95-55,542.11

Finding the Fourth Proportional to 102,110.43, 140,909.95 and 55,542.11

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Solution

The fourth proportional to 102,110.43, 140,909.95 and 55,542.11 is: 76,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,110.43 : 140,909.95 = 55,542.11 : x
  2. Step 2: Convert to fraction form
    102,110.43/140,909.95 = 55,542.11/x
  3. Step 3: Cross multiply
    102,110.43x = 140,909.95 × 55,542.11
  4. Step 4: Simplify right side
    102,110.43x = 7,826,435,665.28
  5. Step 5: Solve for x
    x = 7,826,435,665.28/102,110.43
  6. Step 6: Final answer
    x = 76,646.78

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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.