Home / 121,117.97-167,140.46-67,402.91

Finding the Fourth Proportional to 121,117.97, 167,140.46 and 67,402.91

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Solution

The fourth proportional to 121,117.97, 167,140.46 and 67,402.91 is: 93,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,117.97 : 167,140.46 = 67,402.91 : x
  2. Step 2: Convert to fraction form
    121,117.97/167,140.46 = 67,402.91/x
  3. Step 3: Cross multiply
    121,117.97x = 167,140.46 × 67,402.91
  4. Step 4: Simplify right side
    121,117.97x = 11,265,752,547.04
  5. Step 5: Solve for x
    x = 11,265,752,547.04/121,117.97
  6. Step 6: Final answer
    x = 93,014.71

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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.