Home / 113,687.20-156,889.20-62,701.75

Finding the Fourth Proportional to 113,687.20, 156,889.20 and 62,701.75

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Solution

The fourth proportional to 113,687.20, 156,889.20 and 62,701.75 is: 86,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,687.20 : 156,889.20 = 62,701.75 : x
  2. Step 2: Convert to fraction form
    113,687.20/156,889.20 = 62,701.75/x
  3. Step 3: Cross multiply
    113,687.20x = 156,889.20 × 62,701.75
  4. Step 4: Simplify right side
    113,687.20x = 9,837,227,396.10
  5. Step 5: Solve for x
    x = 9,837,227,396.10/113,687.20
  6. Step 6: Final answer
    x = 86,528.89

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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.