Home / 113,126.65-156,107.87-62,129.45

Finding the Fourth Proportional to 113,126.65, 156,107.87 and 62,129.45

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Solution

The fourth proportional to 113,126.65, 156,107.87 and 62,129.45 is: 85,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,126.65 : 156,107.87 = 62,129.45 : x
  2. Step 2: Convert to fraction form
    113,126.65/156,107.87 = 62,129.45/x
  3. Step 3: Cross multiply
    113,126.65x = 156,107.87 × 62,129.45
  4. Step 4: Simplify right side
    113,126.65x = 9,698,896,103.77
  5. Step 5: Solve for x
    x = 9,698,896,103.77/113,126.65
  6. Step 6: Final answer
    x = 85,734.85

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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.