Home / 99,250.46-136,981.96-72,481.58

Finding the Fourth Proportional to 99,250.46, 136,981.96 and 72,481.58

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Solution

The fourth proportional to 99,250.46, 136,981.96 and 72,481.58 is: 100,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,250.46 : 136,981.96 = 72,481.58 : x
  2. Step 2: Convert to fraction form
    99,250.46/136,981.96 = 72,481.58/x
  3. Step 3: Cross multiply
    99,250.46x = 136,981.96 × 72,481.58
  4. Step 4: Simplify right side
    99,250.46x = 9,928,668,026.18
  5. Step 5: Solve for x
    x = 9,928,668,026.18/99,250.46
  6. Step 6: Final answer
    x = 100,036.50

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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.