Home / 126,454.97-174,505.78-69,871.61

Finding the Fourth Proportional to 126,454.97, 174,505.78 and 69,871.61

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Solution

The fourth proportional to 126,454.97, 174,505.78 and 69,871.61 is: 96,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,454.97 : 174,505.78 = 69,871.61 : x
  2. Step 2: Convert to fraction form
    126,454.97/174,505.78 = 69,871.61/x
  3. Step 3: Cross multiply
    126,454.97x = 174,505.78 × 69,871.61
  4. Step 4: Simplify right side
    126,454.97x = 12,192,999,802.91
  5. Step 5: Solve for x
    x = 12,192,999,802.91/126,454.97
  6. Step 6: Final answer
    x = 96,421.67

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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.