Home / 126,391.30-174,421.19-71,940.81

Finding the Fourth Proportional to 126,391.30, 174,421.19 and 71,940.81

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Solution

The fourth proportional to 126,391.30, 174,421.19 and 71,940.81 is: 99,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.30 : 174,421.19 = 71,940.81 : x
  2. Step 2: Convert to fraction form
    126,391.30/174,421.19 = 71,940.81/x
  3. Step 3: Cross multiply
    126,391.30x = 174,421.19 × 71,940.81
  4. Step 4: Simplify right side
    126,391.30x = 12,548,001,689.76
  5. Step 5: Solve for x
    x = 12,548,001,689.76/126,391.30
  6. Step 6: Final answer
    x = 99,279.00

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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.