Home / 129,621.94-194,509.45-54,737.24

Finding the Fourth Proportional to 129,621.94, 194,509.45 and 54,737.24

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Solution

The fourth proportional to 129,621.94, 194,509.45 and 54,737.24 is: 82,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,621.94 : 194,509.45 = 54,737.24 : x
  2. Step 2: Convert to fraction form
    129,621.94/194,509.45 = 54,737.24/x
  3. Step 3: Cross multiply
    129,621.94x = 194,509.45 × 54,737.24
  4. Step 4: Simplify right side
    129,621.94x = 10,646,909,542.79
  5. Step 5: Solve for x
    x = 10,646,909,542.79/129,621.94
  6. Step 6: Final answer
    x = 82,138.18

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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.