Home / 120,652.10-181,008.90-85,182.52

Finding the Fourth Proportional to 120,652.10, 181,008.90 and 85,182.52

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Solution

The fourth proportional to 120,652.10, 181,008.90 and 85,182.52 is: 127,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,652.10 : 181,008.90 = 85,182.52 : x
  2. Step 2: Convert to fraction form
    120,652.10/181,008.90 = 85,182.52/x
  3. Step 3: Cross multiply
    120,652.10x = 181,008.90 × 85,182.52
  4. Step 4: Simplify right side
    120,652.10x = 15,418,794,244.43
  5. Step 5: Solve for x
    x = 15,418,794,244.43/120,652.10
  6. Step 6: Final answer
    x = 127,795.49

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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.