Home / 126,780-174,956.40-70,195.02

Finding the Fourth Proportional to 126,780, 174,956.40 and 70,195.02

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Solution

The fourth proportional to 126,780, 174,956.40 and 70,195.02 is: 96,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,780 : 174,956.40 = 70,195.02 : x
  2. Step 2: Convert to fraction form
    126,780/174,956.40 = 70,195.02/x
  3. Step 3: Cross multiply
    126,780x = 174,956.40 × 70,195.02
  4. Step 4: Simplify right side
    126,780x = 12,281,067,997.13
  5. Step 5: Solve for x
    x = 12,281,067,997.13/126,780
  6. Step 6: Final answer
    x = 96,869.13

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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.