Home / 121,451.25-167,617.35-71,150.25

Finding the Fourth Proportional to 121,451.25, 167,617.35 and 71,150.25

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Solution

The fourth proportional to 121,451.25, 167,617.35 and 71,150.25 is: 98,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,451.25 : 167,617.35 = 71,150.25 : x
  2. Step 2: Convert to fraction form
    121,451.25/167,617.35 = 71,150.25/x
  3. Step 3: Cross multiply
    121,451.25x = 167,617.35 × 71,150.25
  4. Step 4: Simplify right side
    121,451.25x = 11,926,016,356.84
  5. Step 5: Solve for x
    x = 11,926,016,356.84/121,451.25
  6. Step 6: Final answer
    x = 98,195.91

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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.