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Finding the Fourth Proportional to 129,874.60, 194,754.30 and 59,775.40

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Solution

The fourth proportional to 129,874.60, 194,754.30 and 59,775.40 is: 89,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,874.60 : 194,754.30 = 59,775.40 : x
  2. Step 2: Convert to fraction form
    129,874.60/194,754.30 = 59,775.40/x
  3. Step 3: Cross multiply
    129,874.60x = 194,754.30 × 59,775.40
  4. Step 4: Simplify right side
    129,874.60x = 11,641,516,184.22
  5. Step 5: Solve for x
    x = 11,641,516,184.22/129,874.60
  6. Step 6: Final answer
    x = 89,636.59

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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.