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Finding the Fourth Proportional to 79,129.56, 118,523.70 and 74,476.92

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Solution

The fourth proportional to 79,129.56, 118,523.70 and 74,476.92 is: 111,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,129.56 : 118,523.70 = 74,476.92 : x
  2. Step 2: Convert to fraction form
    79,129.56/118,523.70 = 74,476.92/x
  3. Step 3: Cross multiply
    79,129.56x = 118,523.70 × 74,476.92
  4. Step 4: Simplify right side
    79,129.56x = 8,827,280,123.00
  5. Step 5: Solve for x
    x = 8,827,280,123.00/79,129.56
  6. Step 6: Final answer
    x = 111,554.77

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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.