Home / 121,616.28-167,858.46-71,331.48

Finding the Fourth Proportional to 121,616.28, 167,858.46 and 71,331.48

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Solution

The fourth proportional to 121,616.28, 167,858.46 and 71,331.48 is: 98,453.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,616.28 : 167,858.46 = 71,331.48 : x
  2. Step 2: Convert to fraction form
    121,616.28/167,858.46 = 71,331.48/x
  3. Step 3: Cross multiply
    121,616.28x = 167,858.46 × 71,331.48
  4. Step 4: Simplify right side
    121,616.28x = 11,973,592,382.32
  5. Step 5: Solve for x
    x = 11,973,592,382.32/121,616.28
  6. Step 6: Final answer
    x = 98,453.86

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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.