Home / 113,139.10-156,132.21-62,838.10

Finding the Fourth Proportional to 113,139.10, 156,132.21 and 62,838.10

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Solution

The fourth proportional to 113,139.10, 156,132.21 and 62,838.10 is: 86,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,139.10 : 156,132.21 = 62,838.10 : x
  2. Step 2: Convert to fraction form
    113,139.10/156,132.21 = 62,838.10/x
  3. Step 3: Cross multiply
    113,139.10x = 156,132.21 × 62,838.10
  4. Step 4: Simplify right side
    113,139.10x = 9,811,051,425.20
  5. Step 5: Solve for x
    x = 9,811,051,425.20/113,139.10
  6. Step 6: Final answer
    x = 86,716.72

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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.