Home / 165,877.20-248,767.20-77,109.30

Finding the Fourth Proportional to 165,877.20, 248,767.20 and 77,109.30

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Solution

The fourth proportional to 165,877.20, 248,767.20 and 77,109.30 is: 115,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,877.20 : 248,767.20 = 77,109.30 : x
  2. Step 2: Convert to fraction form
    165,877.20/248,767.20 = 77,109.30/x
  3. Step 3: Cross multiply
    165,877.20x = 248,767.20 × 77,109.30
  4. Step 4: Simplify right side
    165,877.20x = 19,182,264,654.96
  5. Step 5: Solve for x
    x = 19,182,264,654.96/165,877.20
  6. Step 6: Final answer
    x = 115,641.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.