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Finding the Fourth Proportional to 125,486.64, 188,248.86 and 36,729

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Solution

The fourth proportional to 125,486.64, 188,248.86 and 36,729 is: 55,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,486.64 : 188,248.86 = 36,729 : x
  2. Step 2: Convert to fraction form
    125,486.64/188,248.86 = 36,729/x
  3. Step 3: Cross multiply
    125,486.64x = 188,248.86 × 36,729
  4. Step 4: Simplify right side
    125,486.64x = 6,914,192,378.94
  5. Step 5: Solve for x
    x = 6,914,192,378.94/125,486.64
  6. Step 6: Final answer
    x = 55,099.03

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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.