Home / 145,261.92-217,711.44-82,077.60

Finding the Fourth Proportional to 145,261.92, 217,711.44 and 82,077.60

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Solution

The fourth proportional to 145,261.92, 217,711.44 and 82,077.60 is: 123,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,261.92 : 217,711.44 = 82,077.60 : x
  2. Step 2: Convert to fraction form
    145,261.92/217,711.44 = 82,077.60/x
  3. Step 3: Cross multiply
    145,261.92x = 217,711.44 × 82,077.60
  4. Step 4: Simplify right side
    145,261.92x = 17,869,232,487.74
  5. Step 5: Solve for x
    x = 17,869,232,487.74/145,261.92
  6. Step 6: Final answer
    x = 123,013.88

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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.