Home / 127,238.40-175,605.12-76,965.12

Finding the Fourth Proportional to 127,238.40, 175,605.12 and 76,965.12

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Solution

The fourth proportional to 127,238.40, 175,605.12 and 76,965.12 is: 106,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,238.40 : 175,605.12 = 76,965.12 : x
  2. Step 2: Convert to fraction form
    127,238.40/175,605.12 = 76,965.12/x
  3. Step 3: Cross multiply
    127,238.40x = 175,605.12 × 76,965.12
  4. Step 4: Simplify right side
    127,238.40x = 13,515,469,133.41
  5. Step 5: Solve for x
    x = 13,515,469,133.41/127,238.40
  6. Step 6: Final answer
    x = 106,221.62

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1.5x scale

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.