Home / 81,346.91-112,200.86-74,654.15

Finding the Fourth Proportional to 81,346.91, 112,200.86 and 74,654.15

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Solution

The fourth proportional to 81,346.91, 112,200.86 and 74,654.15 is: 102,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.91 : 112,200.86 = 74,654.15 : x
  2. Step 2: Convert to fraction form
    81,346.91/112,200.86 = 74,654.15/x
  3. Step 3: Cross multiply
    81,346.91x = 112,200.86 × 74,654.15
  4. Step 4: Simplify right side
    81,346.91x = 8,376,259,458.20
  5. Step 5: Solve for x
    x = 8,376,259,458.20/81,346.91
  6. Step 6: Final answer
    x = 102,969.61

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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.