Home / 99,209.17-136,909.68-53,888.03

Finding the Fourth Proportional to 99,209.17, 136,909.68 and 53,888.03

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Solution

The fourth proportional to 99,209.17, 136,909.68 and 53,888.03 is: 74,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209.17 : 136,909.68 = 53,888.03 : x
  2. Step 2: Convert to fraction form
    99,209.17/136,909.68 = 53,888.03/x
  3. Step 3: Cross multiply
    99,209.17x = 136,909.68 × 53,888.03
  4. Step 4: Simplify right side
    99,209.17x = 7,377,793,794.71
  5. Step 5: Solve for x
    x = 7,377,793,794.71/99,209.17
  6. Step 6: Final answer
    x = 74,366.05

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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.