Home / 120,566.72-180,849.28-65,512.64

Finding the Fourth Proportional to 120,566.72, 180,849.28 and 65,512.64

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Solution

The fourth proportional to 120,566.72, 180,849.28 and 65,512.64 is: 98,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,566.72 : 180,849.28 = 65,512.64 : x
  2. Step 2: Convert to fraction form
    120,566.72/180,849.28 = 65,512.64/x
  3. Step 3: Cross multiply
    120,566.72x = 180,849.28 × 65,512.64
  4. Step 4: Simplify right side
    120,566.72x = 11,847,913,774.90
  5. Step 5: Solve for x
    x = 11,847,913,774.90/120,566.72
  6. Step 6: Final answer
    x = 98,268.53

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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.