Home / 121,165.47-167,214.78-67,455.18

Finding the Fourth Proportional to 121,165.47, 167,214.78 and 67,455.18

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Solution

The fourth proportional to 121,165.47, 167,214.78 and 67,455.18 is: 93,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,165.47 : 167,214.78 = 67,455.18 : x
  2. Step 2: Convert to fraction form
    121,165.47/167,214.78 = 67,455.18/x
  3. Step 3: Cross multiply
    121,165.47x = 167,214.78 × 67,455.18
  4. Step 4: Simplify right side
    121,165.47x = 11,279,503,083.56
  5. Step 5: Solve for x
    x = 11,279,503,083.56/121,165.47
  6. Step 6: Final answer
    x = 93,091.73

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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.