Home / 113,115.12-156,100.74-62,132.56

Finding the Fourth Proportional to 113,115.12, 156,100.74 and 62,132.56

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Solution

The fourth proportional to 113,115.12, 156,100.74 and 62,132.56 is: 85,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,115.12 : 156,100.74 = 62,132.56 : x
  2. Step 2: Convert to fraction form
    113,115.12/156,100.74 = 62,132.56/x
  3. Step 3: Cross multiply
    113,115.12x = 156,100.74 × 62,132.56
  4. Step 4: Simplify right side
    113,115.12x = 9,698,937,970.85
  5. Step 5: Solve for x
    x = 9,698,937,970.85/113,115.12
  6. Step 6: Final answer
    x = 85,743.96

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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.