Home / 126,140.48-174,071.63-68,780.25

Finding the Fourth Proportional to 126,140.48, 174,071.63 and 68,780.25

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Solution

The fourth proportional to 126,140.48, 174,071.63 and 68,780.25 is: 94,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,140.48 : 174,071.63 = 68,780.25 : x
  2. Step 2: Convert to fraction form
    126,140.48/174,071.63 = 68,780.25/x
  3. Step 3: Cross multiply
    126,140.48x = 174,071.63 × 68,780.25
  4. Step 4: Simplify right side
    126,140.48x = 11,972,690,401.26
  5. Step 5: Solve for x
    x = 11,972,690,401.26/126,140.48
  6. Step 6: Final answer
    x = 94,915.53

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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.