Home / 99,116.80-148,243.20-88,662.40

Finding the Fourth Proportional to 99,116.80, 148,243.20 and 88,662.40

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Solution

The fourth proportional to 99,116.80, 148,243.20 and 88,662.40 is: 132,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,116.80 : 148,243.20 = 88,662.40 : x
  2. Step 2: Convert to fraction form
    99,116.80/148,243.20 = 88,662.40/x
  3. Step 3: Cross multiply
    99,116.80x = 148,243.20 × 88,662.40
  4. Step 4: Simplify right side
    99,116.80x = 13,143,597,895.68
  5. Step 5: Solve for x
    x = 13,143,597,895.68/99,116.80
  6. Step 6: Final answer
    x = 132,607.17

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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.