Home / 144,440.16-199,301.60-80,778.40

Finding the Fourth Proportional to 144,440.16, 199,301.60 and 80,778.40

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Solution

The fourth proportional to 144,440.16, 199,301.60 and 80,778.40 is: 111,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440.16 : 199,301.60 = 80,778.40 : x
  2. Step 2: Convert to fraction form
    144,440.16/199,301.60 = 80,778.40/x
  3. Step 3: Cross multiply
    144,440.16x = 199,301.60 × 80,778.40
  4. Step 4: Simplify right side
    144,440.16x = 16,099,264,365.44
  5. Step 5: Solve for x
    x = 16,099,264,365.44/144,440.16
  6. Step 6: Final answer
    x = 111,459.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.