Home / 121,108.38-167,149.59-70,797.66

Finding the Fourth Proportional to 121,108.38, 167,149.59 and 70,797.66

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Solution

The fourth proportional to 121,108.38, 167,149.59 and 70,797.66 is: 97,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,108.38 : 167,149.59 = 70,797.66 : x
  2. Step 2: Convert to fraction form
    121,108.38/167,149.59 = 70,797.66/x
  3. Step 3: Cross multiply
    121,108.38x = 167,149.59 × 70,797.66
  4. Step 4: Simplify right side
    121,108.38x = 11,833,799,841.96
  5. Step 5: Solve for x
    x = 11,833,799,841.96/121,108.38
  6. Step 6: Final answer
    x = 97,712.48

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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.