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Finding the Fourth Proportional to 125,560.60, 188,340.90 and 42,454.60

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Solution

The fourth proportional to 125,560.60, 188,340.90 and 42,454.60 is: 63,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,560.60 : 188,340.90 = 42,454.60 : x
  2. Step 2: Convert to fraction form
    125,560.60/188,340.90 = 42,454.60/x
  3. Step 3: Cross multiply
    125,560.60x = 188,340.90 × 42,454.60
  4. Step 4: Simplify right side
    125,560.60x = 7,995,937,573.14
  5. Step 5: Solve for x
    x = 7,995,937,573.14/125,560.60
  6. Step 6: Final answer
    x = 63,681.90

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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.