Home / 121,119.97-167,143.22-67,404.91

Finding the Fourth Proportional to 121,119.97, 167,143.22 and 67,404.91

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Solution

The fourth proportional to 121,119.97, 167,143.22 and 67,404.91 is: 93,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,119.97 : 167,143.22 = 67,404.91 : x
  2. Step 2: Convert to fraction form
    121,119.97/167,143.22 = 67,404.91/x
  3. Step 3: Cross multiply
    121,119.97x = 167,143.22 × 67,404.91
  4. Step 4: Simplify right side
    121,119.97x = 11,266,273,701.21
  5. Step 5: Solve for x
    x = 11,266,273,701.21/121,119.97
  6. Step 6: Final answer
    x = 93,017.47

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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.