Home / 83,372.52-115,120.43-76,996.77

Finding the Fourth Proportional to 83,372.52, 115,120.43 and 76,996.77

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Solution

The fourth proportional to 83,372.52, 115,120.43 and 76,996.77 is: 106,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,372.52 : 115,120.43 = 76,996.77 : x
  2. Step 2: Convert to fraction form
    83,372.52/115,120.43 = 76,996.77/x
  3. Step 3: Cross multiply
    83,372.52x = 115,120.43 × 76,996.77
  4. Step 4: Simplify right side
    83,372.52x = 8,863,900,886.03
  5. Step 5: Solve for x
    x = 8,863,900,886.03/83,372.52
  6. Step 6: Final answer
    x = 106,316.82

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1.5x scale

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.