Home / 152,840.75-229,306.68-72,938.70

Finding the Fourth Proportional to 152,840.75, 229,306.68 and 72,938.70

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Solution

The fourth proportional to 152,840.75, 229,306.68 and 72,938.70 is: 109,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,840.75 : 229,306.68 = 72,938.70 : x
  2. Step 2: Convert to fraction form
    152,840.75/229,306.68 = 72,938.70/x
  3. Step 3: Cross multiply
    152,840.75x = 229,306.68 × 72,938.70
  4. Step 4: Simplify right side
    152,840.75x = 16,725,331,140.52
  5. Step 5: Solve for x
    x = 16,725,331,140.52/152,840.75
  6. Step 6: Final answer
    x = 109,429.79

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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.