Home / 272,741.22-409,177.17-85,752.72

Finding the Fourth Proportional to 272,741.22, 409,177.17 and 85,752.72

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Solution

The fourth proportional to 272,741.22, 409,177.17 and 85,752.72 is: 128,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,741.22 : 409,177.17 = 85,752.72 : x
  2. Step 2: Convert to fraction form
    272,741.22/409,177.17 = 85,752.72/x
  3. Step 3: Cross multiply
    272,741.22x = 409,177.17 × 85,752.72
  4. Step 4: Simplify right side
    272,741.22x = 35,088,055,289.40
  5. Step 5: Solve for x
    x = 35,088,055,289.40/272,741.22
  6. Step 6: Final answer
    x = 128,649.62

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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.