Home / 119,781.72-165,268.35-87,895.26

Finding the Fourth Proportional to 119,781.72, 165,268.35 and 87,895.26

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Solution

The fourth proportional to 119,781.72, 165,268.35 and 87,895.26 is: 121,273.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,781.72 : 165,268.35 = 87,895.26 : x
  2. Step 2: Convert to fraction form
    119,781.72/165,268.35 = 87,895.26/x
  3. Step 3: Cross multiply
    119,781.72x = 165,268.35 × 87,895.26
  4. Step 4: Simplify right side
    119,781.72x = 14,526,304,593.02
  5. Step 5: Solve for x
    x = 14,526,304,593.02/119,781.72
  6. Step 6: Final answer
    x = 121,273.13

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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.