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Finding the Fourth Proportional to 144,612.96, 199,570.08 and 80,949.12

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Solution

The fourth proportional to 144,612.96, 199,570.08 and 80,949.12 is: 111,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612.96 : 199,570.08 = 80,949.12 : x
  2. Step 2: Convert to fraction form
    144,612.96/199,570.08 = 80,949.12/x
  3. Step 3: Cross multiply
    144,612.96x = 199,570.08 × 80,949.12
  4. Step 4: Simplify right side
    144,612.96x = 16,155,022,354.33
  5. Step 5: Solve for x
    x = 16,155,022,354.33/144,612.96
  6. Step 6: Final answer
    x = 111,712.13

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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.