Home / 126,888.76-190,419.27-67,766.86

Finding the Fourth Proportional to 126,888.76, 190,419.27 and 67,766.86

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Solution

The fourth proportional to 126,888.76, 190,419.27 and 67,766.86 is: 101,696.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.76 : 190,419.27 = 67,766.86 : x
  2. Step 2: Convert to fraction form
    126,888.76/190,419.27 = 67,766.86/x
  3. Step 3: Cross multiply
    126,888.76x = 190,419.27 × 67,766.86
  4. Step 4: Simplify right side
    126,888.76x = 12,904,116,011.39
  5. Step 5: Solve for x
    x = 12,904,116,011.39/126,888.76
  6. Step 6: Final answer
    x = 101,696.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.