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Finding the Fourth Proportional to 128,248.80, 192,340.24 and 60,714.24

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Solution

The fourth proportional to 128,248.80, 192,340.24 and 60,714.24 is: 91,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,248.80 : 192,340.24 = 60,714.24 : x
  2. Step 2: Convert to fraction form
    128,248.80/192,340.24 = 60,714.24/x
  3. Step 3: Cross multiply
    128,248.80x = 192,340.24 × 60,714.24
  4. Step 4: Simplify right side
    128,248.80x = 11,677,791,493.02
  5. Step 5: Solve for x
    x = 11,677,791,493.02/128,248.80
  6. Step 6: Final answer
    x = 91,055.76

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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.