Home / 144,387.48-199,250.64-80,731.20

Finding the Fourth Proportional to 144,387.48, 199,250.64 and 80,731.20

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Solution

The fourth proportional to 144,387.48, 199,250.64 and 80,731.20 is: 111,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,387.48 : 199,250.64 = 80,731.20 : x
  2. Step 2: Convert to fraction form
    144,387.48/199,250.64 = 80,731.20/x
  3. Step 3: Cross multiply
    144,387.48x = 199,250.64 × 80,731.20
  4. Step 4: Simplify right side
    144,387.48x = 16,085,743,267.97
  5. Step 5: Solve for x
    x = 16,085,743,267.97/144,387.48
  6. Step 6: Final answer
    x = 111,406.77

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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.