Home / 126,106.56-174,034.48-72,391.68

Finding the Fourth Proportional to 126,106.56, 174,034.48 and 72,391.68

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Solution

The fourth proportional to 126,106.56, 174,034.48 and 72,391.68 is: 99,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,106.56 : 174,034.48 = 72,391.68 : x
  2. Step 2: Convert to fraction form
    126,106.56/174,034.48 = 72,391.68/x
  3. Step 3: Cross multiply
    126,106.56x = 174,034.48 × 72,391.68
  4. Step 4: Simplify right side
    126,106.56x = 12,598,648,385.13
  5. Step 5: Solve for x
    x = 12,598,648,385.13/126,106.56
  6. Step 6: Final answer
    x = 99,904.78

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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.