Home / 115,165.29-172,775.25-36,279.30

Finding the Fourth Proportional to 115,165.29, 172,775.25 and 36,279.30

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Solution

The fourth proportional to 115,165.29, 172,775.25 and 36,279.30 is: 54,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,165.29 : 172,775.25 = 36,279.30 : x
  2. Step 2: Convert to fraction form
    115,165.29/172,775.25 = 36,279.30/x
  3. Step 3: Cross multiply
    115,165.29x = 172,775.25 × 36,279.30
  4. Step 4: Simplify right side
    115,165.29x = 6,268,165,127.33
  5. Step 5: Solve for x
    x = 6,268,165,127.33/115,165.29
  6. Step 6: Final answer
    x = 54,427.55

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1.5x scale

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.