Home / 121,434.12-167,625.24-91,306.92

Finding the Fourth Proportional to 121,434.12, 167,625.24 and 91,306.92

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Solution

The fourth proportional to 121,434.12, 167,625.24 and 91,306.92 is: 126,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,434.12 : 167,625.24 = 91,306.92 : x
  2. Step 2: Convert to fraction form
    121,434.12/167,625.24 = 91,306.92/x
  3. Step 3: Cross multiply
    121,434.12x = 167,625.24 × 91,306.92
  4. Step 4: Simplify right side
    121,434.12x = 15,305,344,378.66
  5. Step 5: Solve for x
    x = 15,305,344,378.66/121,434.12
  6. Step 6: Final answer
    x = 126,038.25

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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.