Home / 99,169.56-136,840.20-58,335.52

Finding the Fourth Proportional to 99,169.56, 136,840.20 and 58,335.52

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Solution

The fourth proportional to 99,169.56, 136,840.20 and 58,335.52 is: 80,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,169.56 : 136,840.20 = 58,335.52 : x
  2. Step 2: Convert to fraction form
    99,169.56/136,840.20 = 58,335.52/x
  3. Step 3: Cross multiply
    99,169.56x = 136,840.20 × 58,335.52
  4. Step 4: Simplify right side
    99,169.56x = 7,982,644,223.90
  5. Step 5: Solve for x
    x = 7,982,644,223.90/99,169.56
  6. Step 6: Final answer
    x = 80,494.90

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1.5x scale

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.