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Finding the Fourth Proportional to 129,445, 194,167.26 and 74,002.12

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Solution

The fourth proportional to 129,445, 194,167.26 and 74,002.12 is: 111,003.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,445 : 194,167.26 = 74,002.12 : x
  2. Step 2: Convert to fraction form
    129,445/194,167.26 = 74,002.12/x
  3. Step 3: Cross multiply
    129,445x = 194,167.26 × 74,002.12
  4. Step 4: Simplify right side
    129,445x = 14,368,788,874.59
  5. Step 5: Solve for x
    x = 14,368,788,874.59/129,445
  6. Step 6: Final answer
    x = 111,003.04

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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.