Home / 129,411.42-194,136.24-66,267.24

Finding the Fourth Proportional to 129,411.42, 194,136.24 and 66,267.24

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Solution

The fourth proportional to 129,411.42, 194,136.24 and 66,267.24 is: 99,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,411.42 : 194,136.24 = 66,267.24 : x
  2. Step 2: Convert to fraction form
    129,411.42/194,136.24 = 66,267.24/x
  3. Step 3: Cross multiply
    129,411.42x = 194,136.24 × 66,267.24
  4. Step 4: Simplify right side
    129,411.42x = 12,864,872,808.78
  5. Step 5: Solve for x
    x = 12,864,872,808.78/129,411.42
  6. Step 6: Final answer
    x = 99,410.65

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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.