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Finding the Fourth Proportional to 129,600.64, 194,363.70 and 54,737.74

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Solution

The fourth proportional to 129,600.64, 194,363.70 and 54,737.74 is: 82,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,600.64 : 194,363.70 = 54,737.74 : x
  2. Step 2: Convert to fraction form
    129,600.64/194,363.70 = 54,737.74/x
  3. Step 3: Cross multiply
    129,600.64x = 194,363.70 × 54,737.74
  4. Step 4: Simplify right side
    129,600.64x = 10,639,029,676.04
  5. Step 5: Solve for x
    x = 10,639,029,676.04/129,600.64
  6. Step 6: Final answer
    x = 82,090.87

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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.