Home / 121,401.20-167,530.38-70,410.71

Finding the Fourth Proportional to 121,401.20, 167,530.38 and 70,410.71

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Solution

The fourth proportional to 121,401.20, 167,530.38 and 70,410.71 is: 97,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,401.20 : 167,530.38 = 70,410.71 : x
  2. Step 2: Convert to fraction form
    121,401.20/167,530.38 = 70,410.71/x
  3. Step 3: Cross multiply
    121,401.20x = 167,530.38 × 70,410.71
  4. Step 4: Simplify right side
    121,401.20x = 11,795,933,002.37
  5. Step 5: Solve for x
    x = 11,795,933,002.37/121,401.20
  6. Step 6: Final answer
    x = 97,164.88

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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.