Home / 99,604.20-149,309.10-89,106.60

Finding the Fourth Proportional to 99,604.20, 149,309.10 and 89,106.60

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Solution

The fourth proportional to 99,604.20, 149,309.10 and 89,106.60 is: 133,572.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,604.20 : 149,309.10 = 89,106.60 : x
  2. Step 2: Convert to fraction form
    99,604.20/149,309.10 = 89,106.60/x
  3. Step 3: Cross multiply
    99,604.20x = 149,309.10 × 89,106.60
  4. Step 4: Simplify right side
    99,604.20x = 13,304,426,250.06
  5. Step 5: Solve for x
    x = 13,304,426,250.06/99,604.20
  6. Step 6: Final answer
    x = 133,572.94

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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.