Home / 155,979.90-215,278.73-88,016.15

Finding the Fourth Proportional to 155,979.90, 215,278.73 and 88,016.15

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Solution

The fourth proportional to 155,979.90, 215,278.73 and 88,016.15 is: 121,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,979.90 : 215,278.73 = 88,016.15 : x
  2. Step 2: Convert to fraction form
    155,979.90/215,278.73 = 88,016.15/x
  3. Step 3: Cross multiply
    155,979.90x = 215,278.73 × 88,016.15
  4. Step 4: Simplify right side
    155,979.90x = 18,948,004,991.49
  5. Step 5: Solve for x
    x = 18,948,004,991.49/155,979.90
  6. Step 6: Final answer
    x = 121,477.22

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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.