Home / 120,440.78-180,654.32-36,199.24

Finding the Fourth Proportional to 120,440.78, 180,654.32 and 36,199.24

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Solution

The fourth proportional to 120,440.78, 180,654.32 and 36,199.24 is: 54,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,440.78 : 180,654.32 = 36,199.24 : x
  2. Step 2: Convert to fraction form
    120,440.78/180,654.32 = 36,199.24/x
  3. Step 3: Cross multiply
    120,440.78x = 180,654.32 × 36,199.24
  4. Step 4: Simplify right side
    120,440.78x = 6,539,549,086.72
  5. Step 5: Solve for x
    x = 6,539,549,086.72/120,440.78
  6. Step 6: Final answer
    x = 54,296.80

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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.