Home / 121,391.16-167,519.25-70,414.20

Finding the Fourth Proportional to 121,391.16, 167,519.25 and 70,414.20

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Solution

The fourth proportional to 121,391.16, 167,519.25 and 70,414.20 is: 97,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.16 : 167,519.25 = 70,414.20 : x
  2. Step 2: Convert to fraction form
    121,391.16/167,519.25 = 70,414.20/x
  3. Step 3: Cross multiply
    121,391.16x = 167,519.25 × 70,414.20
  4. Step 4: Simplify right side
    121,391.16x = 11,795,733,973.35
  5. Step 5: Solve for x
    x = 11,795,733,973.35/121,391.16
  6. Step 6: Final answer
    x = 97,171.28

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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.