Home / 127,276.40-175,648.25-76,297.43

Finding the Fourth Proportional to 127,276.40, 175,648.25 and 76,297.43

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Solution

The fourth proportional to 127,276.40, 175,648.25 and 76,297.43 is: 105,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,276.40 : 175,648.25 = 76,297.43 : x
  2. Step 2: Convert to fraction form
    127,276.40/175,648.25 = 76,297.43/x
  3. Step 3: Cross multiply
    127,276.40x = 175,648.25 × 76,297.43
  4. Step 4: Simplify right side
    127,276.40x = 13,401,508,799.27
  5. Step 5: Solve for x
    x = 13,401,508,799.27/127,276.40
  6. Step 6: Final answer
    x = 105,294.53

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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.