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Finding the Fourth Proportional to 160,048.36, 240,142.92 and 85,150.90

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Solution

The fourth proportional to 160,048.36, 240,142.92 and 85,150.90 is: 127,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,048.36 : 240,142.92 = 85,150.90 : x
  2. Step 2: Convert to fraction form
    160,048.36/240,142.92 = 85,150.90/x
  3. Step 3: Cross multiply
    160,048.36x = 240,142.92 × 85,150.90
  4. Step 4: Simplify right side
    160,048.36x = 20,448,385,766.63
  5. Step 5: Solve for x
    x = 20,448,385,766.63/160,048.36
  6. Step 6: Final answer
    x = 127,763.79

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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.