Home / 99,122.80-148,252.20-88,668.40

Finding the Fourth Proportional to 99,122.80, 148,252.20 and 88,668.40

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Solution

The fourth proportional to 99,122.80, 148,252.20 and 88,668.40 is: 132,616.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.80 : 148,252.20 = 88,668.40 : x
  2. Step 2: Convert to fraction form
    99,122.80/148,252.20 = 88,668.40/x
  3. Step 3: Cross multiply
    99,122.80x = 148,252.20 × 88,668.40
  4. Step 4: Simplify right side
    99,122.80x = 13,145,285,370.48
  5. Step 5: Solve for x
    x = 13,145,285,370.48/99,122.80
  6. Step 6: Final answer
    x = 132,616.16

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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.