Home / 120,440.44-180,663.63-40,479.60

Finding the Fourth Proportional to 120,440.44, 180,663.63 and 40,479.60

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Solution

The fourth proportional to 120,440.44, 180,663.63 and 40,479.60 is: 60,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,440.44 : 180,663.63 = 40,479.60 : x
  2. Step 2: Convert to fraction form
    120,440.44/180,663.63 = 40,479.60/x
  3. Step 3: Cross multiply
    120,440.44x = 180,663.63 × 40,479.60
  4. Step 4: Simplify right side
    120,440.44x = 7,313,191,476.95
  5. Step 5: Solve for x
    x = 7,313,191,476.95/120,440.44
  6. Step 6: Final answer
    x = 60,720.40

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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.