Home / 151,921.52-209,615.96-88,221.04

Finding the Fourth Proportional to 151,921.52, 209,615.96 and 88,221.04

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Solution

The fourth proportional to 151,921.52, 209,615.96 and 88,221.04 is: 121,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,921.52 : 209,615.96 = 88,221.04 : x
  2. Step 2: Convert to fraction form
    151,921.52/209,615.96 = 88,221.04/x
  3. Step 3: Cross multiply
    151,921.52x = 209,615.96 × 88,221.04
  4. Step 4: Simplify right side
    151,921.52x = 18,492,537,991.80
  5. Step 5: Solve for x
    x = 18,492,537,991.80/151,921.52
  6. Step 6: Final answer
    x = 121,724.28

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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.