Home / 99,534.80-148,870.20-89,080.40

Finding the Fourth Proportional to 99,534.80, 148,870.20 and 89,080.40

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Solution

The fourth proportional to 99,534.80, 148,870.20 and 89,080.40 is: 133,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,534.80 : 148,870.20 = 89,080.40 : x
  2. Step 2: Convert to fraction form
    99,534.80/148,870.20 = 89,080.40/x
  3. Step 3: Cross multiply
    99,534.80x = 148,870.20 × 89,080.40
  4. Step 4: Simplify right side
    99,534.80x = 13,261,416,964.08
  5. Step 5: Solve for x
    x = 13,261,416,964.08/99,534.80
  6. Step 6: Final answer
    x = 133,233.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.