Home / 99,819.04-137,750.40-55,107.04

Finding the Fourth Proportional to 99,819.04, 137,750.40 and 55,107.04

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Solution

The fourth proportional to 99,819.04, 137,750.40 and 55,107.04 is: 76,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,819.04 : 137,750.40 = 55,107.04 : x
  2. Step 2: Convert to fraction form
    99,819.04/137,750.40 = 55,107.04/x
  3. Step 3: Cross multiply
    99,819.04x = 137,750.40 × 55,107.04
  4. Step 4: Simplify right side
    99,819.04x = 7,591,016,802.82
  5. Step 5: Solve for x
    x = 7,591,016,802.82/99,819.04
  6. Step 6: Final answer
    x = 76,047.78

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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.