Home / 121,639.28-167,862.44-67,924.13

Finding the Fourth Proportional to 121,639.28, 167,862.44 and 67,924.13

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Solution

The fourth proportional to 121,639.28, 167,862.44 and 67,924.13 is: 93,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,639.28 : 167,862.44 = 67,924.13 : x
  2. Step 2: Convert to fraction form
    121,639.28/167,862.44 = 67,924.13/x
  3. Step 3: Cross multiply
    121,639.28x = 167,862.44 × 67,924.13
  4. Step 4: Simplify right side
    121,639.28x = 11,401,909,527.18
  5. Step 5: Solve for x
    x = 11,401,909,527.18/121,639.28
  6. Step 6: Final answer
    x = 93,735.43

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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.