Home / 99,208.89-136,909.38-58,382.04

Finding the Fourth Proportional to 99,208.89, 136,909.38 and 58,382.04

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Solution

The fourth proportional to 99,208.89, 136,909.38 and 58,382.04 is: 80,567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,208.89 : 136,909.38 = 58,382.04 : x
  2. Step 2: Convert to fraction form
    99,208.89/136,909.38 = 58,382.04/x
  3. Step 3: Cross multiply
    99,208.89x = 136,909.38 × 58,382.04
  4. Step 4: Simplify right side
    99,208.89x = 7,993,049,412.95
  5. Step 5: Solve for x
    x = 7,993,049,412.95/99,208.89
  6. Step 6: Final answer
    x = 80,567.87

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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.