Home / 121,697.24-167,937.18-67,982

Finding the Fourth Proportional to 121,697.24, 167,937.18 and 67,982

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Solution

The fourth proportional to 121,697.24, 167,937.18 and 67,982 is: 93,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,697.24 : 167,937.18 = 67,982 : x
  2. Step 2: Convert to fraction form
    121,697.24/167,937.18 = 67,982/x
  3. Step 3: Cross multiply
    121,697.24x = 167,937.18 × 67,982
  4. Step 4: Simplify right side
    121,697.24x = 11,416,705,370.76
  5. Step 5: Solve for x
    x = 11,416,705,370.76/121,697.24
  6. Step 6: Final answer
    x = 93,812.36

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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.