Home / 126,140.74-174,071.97-68,780.50

Finding the Fourth Proportional to 126,140.74, 174,071.97 and 68,780.50

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Solution

The fourth proportional to 126,140.74, 174,071.97 and 68,780.50 is: 94,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.74 : 174,071.97 = 68,780.50 : x
  2. Step 2: Convert to fraction form
    126,140.74/174,071.97 = 68,780.50/x
  3. Step 3: Cross multiply
    126,140.74x = 174,071.97 × 68,780.50
  4. Step 4: Simplify right side
    126,140.74x = 11,972,757,132.59
  5. Step 5: Solve for x
    x = 11,972,757,132.59/126,140.74
  6. Step 6: Final answer
    x = 94,915.86

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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.