Home / 129,760.64-194,381.76-118,796.48

Finding the Fourth Proportional to 129,760.64, 194,381.76 and 118,796.48

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Solution

The fourth proportional to 129,760.64, 194,381.76 and 118,796.48 is: 177,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.64 : 194,381.76 = 118,796.48 : x
  2. Step 2: Convert to fraction form
    129,760.64/194,381.76 = 118,796.48/x
  3. Step 3: Cross multiply
    129,760.64x = 194,381.76 × 118,796.48
  4. Step 4: Simplify right side
    129,760.64x = 23,091,868,864.20
  5. Step 5: Solve for x
    x = 23,091,868,864.20/129,760.64
  6. Step 6: Final answer
    x = 177,957.42

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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.