Home / 126,140.35-174,071.46-68,780.13

Finding the Fourth Proportional to 126,140.35, 174,071.46 and 68,780.13

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Solution

The fourth proportional to 126,140.35, 174,071.46 and 68,780.13 is: 94,915.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.35 : 174,071.46 = 68,780.13 : x
  2. Step 2: Convert to fraction form
    126,140.35/174,071.46 = 68,780.13/x
  3. Step 3: Cross multiply
    126,140.35x = 174,071.46 × 68,780.13
  4. Step 4: Simplify right side
    126,140.35x = 11,972,657,648.09
  5. Step 5: Solve for x
    x = 11,972,657,648.09/126,140.35
  6. Step 6: Final answer
    x = 94,915.37

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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.