Home / 129,558.38-194,337.57-74,115.50

Finding the Fourth Proportional to 129,558.38, 194,337.57 and 74,115.50

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Solution

The fourth proportional to 129,558.38, 194,337.57 and 74,115.50 is: 111,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,558.38 : 194,337.57 = 74,115.50 : x
  2. Step 2: Convert to fraction form
    129,558.38/194,337.57 = 74,115.50/x
  3. Step 3: Cross multiply
    129,558.38x = 194,337.57 × 74,115.50
  4. Step 4: Simplify right side
    129,558.38x = 14,403,426,169.34
  5. Step 5: Solve for x
    x = 14,403,426,169.34/129,558.38
  6. Step 6: Final answer
    x = 111,173.25

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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.