Home / 108,236.89-162,177.84-76,491.90

Finding the Fourth Proportional to 108,236.89, 162,177.84 and 76,491.90

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Solution

The fourth proportional to 108,236.89, 162,177.84 and 76,491.90 is: 114,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,236.89 : 162,177.84 = 76,491.90 : x
  2. Step 2: Convert to fraction form
    108,236.89/162,177.84 = 76,491.90/x
  3. Step 3: Cross multiply
    108,236.89x = 162,177.84 × 76,491.90
  4. Step 4: Simplify right side
    108,236.89x = 12,405,291,119.50
  5. Step 5: Solve for x
    x = 12,405,291,119.50/108,236.89
  6. Step 6: Final answer
    x = 114,612.42

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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.