Home / 113,540.68-156,686.28-61,857.52

Finding the Fourth Proportional to 113,540.68, 156,686.28 and 61,857.52

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Solution

The fourth proportional to 113,540.68, 156,686.28 and 61,857.52 is: 85,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,540.68 : 156,686.28 = 61,857.52 : x
  2. Step 2: Convert to fraction form
    113,540.68/156,686.28 = 61,857.52/x
  3. Step 3: Cross multiply
    113,540.68x = 156,686.28 × 61,857.52
  4. Step 4: Simplify right side
    113,540.68x = 9,692,224,776.15
  5. Step 5: Solve for x
    x = 9,692,224,776.15/113,540.68
  6. Step 6: Final answer
    x = 85,363.46

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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.