Home / 113,738.72-156,959.04-63,437.68

Finding the Fourth Proportional to 113,738.72, 156,959.04 and 63,437.68

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Solution

The fourth proportional to 113,738.72, 156,959.04 and 63,437.68 is: 87,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,738.72 : 156,959.04 = 63,437.68 : x
  2. Step 2: Convert to fraction form
    113,738.72/156,959.04 = 63,437.68/x
  3. Step 3: Cross multiply
    113,738.72x = 156,959.04 × 63,437.68
  4. Step 4: Simplify right side
    113,738.72x = 9,957,117,352.63
  5. Step 5: Solve for x
    x = 9,957,117,352.63/113,738.72
  6. Step 6: Final answer
    x = 87,543.78

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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.