Home / 121,127.20-167,153.88-67,412.23

Finding the Fourth Proportional to 121,127.20, 167,153.88 and 67,412.23

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Solution

The fourth proportional to 121,127.20, 167,153.88 and 67,412.23 is: 93,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127.20 : 167,153.88 = 67,412.23 : x
  2. Step 2: Convert to fraction form
    121,127.20/167,153.88 = 67,412.23/x
  3. Step 3: Cross multiply
    121,127.20x = 167,153.88 × 67,412.23
  4. Step 4: Simplify right side
    121,127.20x = 11,268,215,049.01
  5. Step 5: Solve for x
    x = 11,268,215,049.01/121,127.20
  6. Step 6: Final answer
    x = 93,027.95

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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.