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Finding the Fourth Proportional to 137,233.60, 205,869.60 and 58,347.20

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Solution

The fourth proportional to 137,233.60, 205,869.60 and 58,347.20 is: 87,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,233.60 : 205,869.60 = 58,347.20 : x
  2. Step 2: Convert to fraction form
    137,233.60/205,869.60 = 58,347.20/x
  3. Step 3: Cross multiply
    137,233.60x = 205,869.60 × 58,347.20
  4. Step 4: Simplify right side
    137,233.60x = 12,011,914,725.12
  5. Step 5: Solve for x
    x = 12,011,914,725.12/137,233.60
  6. Step 6: Final answer
    x = 87,528.96

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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.