Home / 145,261.90-217,424.13-75,044.62

Finding the Fourth Proportional to 145,261.90, 217,424.13 and 75,044.62

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Solution

The fourth proportional to 145,261.90, 217,424.13 and 75,044.62 is: 112,324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.90 : 217,424.13 = 75,044.62 : x
  2. Step 2: Convert to fraction form
    145,261.90/217,424.13 = 75,044.62/x
  3. Step 3: Cross multiply
    145,261.90x = 217,424.13 × 75,044.62
  4. Step 4: Simplify right side
    145,261.90x = 16,316,510,839.46
  5. Step 5: Solve for x
    x = 16,316,510,839.46/145,261.90
  6. Step 6: Final answer
    x = 112,324.78

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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.