Home / 100,257.50-138,342.22-59,956.55

Finding the Fourth Proportional to 100,257.50, 138,342.22 and 59,956.55

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Solution

The fourth proportional to 100,257.50, 138,342.22 and 59,956.55 is: 82,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,257.50 : 138,342.22 = 59,956.55 : x
  2. Step 2: Convert to fraction form
    100,257.50/138,342.22 = 59,956.55/x
  3. Step 3: Cross multiply
    100,257.50x = 138,342.22 × 59,956.55
  4. Step 4: Simplify right side
    100,257.50x = 8,294,522,576.40
  5. Step 5: Solve for x
    x = 8,294,522,576.40/100,257.50
  6. Step 6: Final answer
    x = 82,732.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.