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Finding the Fourth Proportional to 125,901.10, 188,851.65 and 118,513.90

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Solution

The fourth proportional to 125,901.10, 188,851.65 and 118,513.90 is: 177,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,901.10 : 188,851.65 = 118,513.90 : x
  2. Step 2: Convert to fraction form
    125,901.10/188,851.65 = 118,513.90/x
  3. Step 3: Cross multiply
    125,901.10x = 188,851.65 × 118,513.90
  4. Step 4: Simplify right side
    125,901.10x = 22,381,545,562.94
  5. Step 5: Solve for x
    x = 22,381,545,562.94/125,901.10
  6. Step 6: Final answer
    x = 177,770.85

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