Home / 121,181.30-181,765.58-36,939.43

Finding the Fourth Proportional to 121,181.30, 181,765.58 and 36,939.43

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Solution

The fourth proportional to 121,181.30, 181,765.58 and 36,939.43 is: 55,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,181.30 : 181,765.58 = 36,939.43 : x
  2. Step 2: Convert to fraction form
    121,181.30/181,765.58 = 36,939.43/x
  3. Step 3: Cross multiply
    121,181.30x = 181,765.58 × 36,939.43
  4. Step 4: Simplify right side
    121,181.30x = 6,714,316,918.82
  5. Step 5: Solve for x
    x = 6,714,316,918.82/121,181.30
  6. Step 6: Final answer
    x = 55,407.20

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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.