Home / 121,156.56-167,200.97-67,438.17

Finding the Fourth Proportional to 121,156.56, 167,200.97 and 67,438.17

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Solution

The fourth proportional to 121,156.56, 167,200.97 and 67,438.17 is: 93,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156.56 : 167,200.97 = 67,438.17 : x
  2. Step 2: Convert to fraction form
    121,156.56/167,200.97 = 67,438.17/x
  3. Step 3: Cross multiply
    121,156.56x = 167,200.97 × 67,438.17
  4. Step 4: Simplify right side
    121,156.56x = 11,275,727,101.83
  5. Step 5: Solve for x
    x = 11,275,727,101.83/121,156.56
  6. Step 6: Final answer
    x = 93,067.41

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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.