Home / 96,729.72-145,123.74-30,176.88

Finding the Fourth Proportional to 96,729.72, 145,123.74 and 30,176.88

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Solution

The fourth proportional to 96,729.72, 145,123.74 and 30,176.88 is: 45,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,729.72 : 145,123.74 = 30,176.88 : x
  2. Step 2: Convert to fraction form
    96,729.72/145,123.74 = 30,176.88/x
  3. Step 3: Cross multiply
    96,729.72x = 145,123.74 × 30,176.88
  4. Step 4: Simplify right side
    96,729.72x = 4,379,381,687.13
  5. Step 5: Solve for x
    x = 4,379,381,687.13/96,729.72
  6. Step 6: Final answer
    x = 45,274.42

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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.