Home / 126,942.40-175,180.15-70,353.78

Finding the Fourth Proportional to 126,942.40, 175,180.15 and 70,353.78

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Solution

The fourth proportional to 126,942.40, 175,180.15 and 70,353.78 is: 97,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,942.40 : 175,180.15 = 70,353.78 : x
  2. Step 2: Convert to fraction form
    126,942.40/175,180.15 = 70,353.78/x
  3. Step 3: Cross multiply
    126,942.40x = 175,180.15 × 70,353.78
  4. Step 4: Simplify right side
    126,942.40x = 12,324,584,505.80
  5. Step 5: Solve for x
    x = 12,324,584,505.80/126,942.40
  6. Step 6: Final answer
    x = 97,088.01

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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.