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Finding the Fourth Proportional to 160,540.86, 240,838.56 and 80,616.90

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Solution

The fourth proportional to 160,540.86, 240,838.56 and 80,616.90 is: 120,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,540.86 : 240,838.56 = 80,616.90 : x
  2. Step 2: Convert to fraction form
    160,540.86/240,838.56 = 80,616.90/x
  3. Step 3: Cross multiply
    160,540.86x = 240,838.56 × 80,616.90
  4. Step 4: Simplify right side
    160,540.86x = 19,415,658,107.66
  5. Step 5: Solve for x
    x = 19,415,658,107.66/160,540.86
  6. Step 6: Final answer
    x = 120,939.04

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1.5x scale

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.