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Finding the Fourth Proportional to 125,781.40, 188,672.10 and 59,199.40

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Solution

The fourth proportional to 125,781.40, 188,672.10 and 59,199.40 is: 88,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,781.40 : 188,672.10 = 59,199.40 : x
  2. Step 2: Convert to fraction form
    125,781.40/188,672.10 = 59,199.40/x
  3. Step 3: Cross multiply
    125,781.40x = 188,672.10 × 59,199.40
  4. Step 4: Simplify right side
    125,781.40x = 11,169,275,116.74
  5. Step 5: Solve for x
    x = 11,169,275,116.74/125,781.40
  6. Step 6: Final answer
    x = 88,799.10

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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.