Home / 103,677.10-155,515.65-68,041.90

Finding the Fourth Proportional to 103,677.10, 155,515.65 and 68,041.90

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Solution

The fourth proportional to 103,677.10, 155,515.65 and 68,041.90 is: 102,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.10 : 155,515.65 = 68,041.90 : x
  2. Step 2: Convert to fraction form
    103,677.10/155,515.65 = 68,041.90/x
  3. Step 3: Cross multiply
    103,677.10x = 155,515.65 × 68,041.90
  4. Step 4: Simplify right side
    103,677.10x = 10,581,580,305.74
  5. Step 5: Solve for x
    x = 10,581,580,305.74/103,677.10
  6. Step 6: Final answer
    x = 102,062.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.