Home / 129,411.81-194,164.42-45,184.38

Finding the Fourth Proportional to 129,411.81, 194,164.42 and 45,184.38

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Solution

The fourth proportional to 129,411.81, 194,164.42 and 45,184.38 is: 67,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,411.81 : 194,164.42 = 45,184.38 : x
  2. Step 2: Convert to fraction form
    129,411.81/194,164.42 = 45,184.38/x
  3. Step 3: Cross multiply
    129,411.81x = 194,164.42 × 45,184.38
  4. Step 4: Simplify right side
    129,411.81x = 8,773,198,698.17
  5. Step 5: Solve for x
    x = 8,773,198,698.17/129,411.81
  6. Step 6: Final answer
    x = 67,792.88

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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.