Home / 145,261.31-217,423.24-75,044.03

Finding the Fourth Proportional to 145,261.31, 217,423.24 and 75,044.03

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Solution

The fourth proportional to 145,261.31, 217,423.24 and 75,044.03 is: 112,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.31 : 217,423.24 = 75,044.03 : x
  2. Step 2: Convert to fraction form
    145,261.31/217,423.24 = 75,044.03/x
  3. Step 3: Cross multiply
    145,261.31x = 217,423.24 × 75,044.03
  4. Step 4: Simplify right side
    145,261.31x = 16,316,314,870.53
  5. Step 5: Solve for x
    x = 16,316,314,870.53/145,261.31
  6. Step 6: Final answer
    x = 112,323.89

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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.