Home / 129,731.96-194,537.46-67,385.72

Finding the Fourth Proportional to 129,731.96, 194,537.46 and 67,385.72

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Solution

The fourth proportional to 129,731.96, 194,537.46 and 67,385.72 is: 101,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,731.96 : 194,537.46 = 67,385.72 : x
  2. Step 2: Convert to fraction form
    129,731.96/194,537.46 = 67,385.72/x
  3. Step 3: Cross multiply
    129,731.96x = 194,537.46 × 67,385.72
  4. Step 4: Simplify right side
    129,731.96x = 13,109,046,809.07
  5. Step 5: Solve for x
    x = 13,109,046,809.07/129,731.96
  6. Step 6: Final answer
    x = 101,047.17

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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.