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Finding the Fourth Proportional to 172,597.52, 258,931.58 and 72,757.73

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Solution

The fourth proportional to 172,597.52, 258,931.58 and 72,757.73 is: 109,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,597.52 : 258,931.58 = 72,757.73 : x
  2. Step 2: Convert to fraction form
    172,597.52/258,931.58 = 72,757.73/x
  3. Step 3: Cross multiply
    172,597.52x = 258,931.58 × 72,757.73
  4. Step 4: Simplify right side
    172,597.52x = 18,839,272,327.67
  5. Step 5: Solve for x
    x = 18,839,272,327.67/172,597.52
  6. Step 6: Final answer
    x = 109,151.47

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1.5x scale

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.