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Finding the Fourth Proportional to 159,739.60, 220,300.56 and 127,896.88

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Solution

The fourth proportional to 159,739.60, 220,300.56 and 127,896.88 is: 176,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,739.60 : 220,300.56 = 127,896.88 : x
  2. Step 2: Convert to fraction form
    159,739.60/220,300.56 = 127,896.88/x
  3. Step 3: Cross multiply
    159,739.60x = 220,300.56 × 127,896.88
  4. Step 4: Simplify right side
    159,739.60x = 28,175,754,286.25
  5. Step 5: Solve for x
    x = 28,175,754,286.25/159,739.60
  6. Step 6: Final answer
    x = 176,385.53

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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.