Home / 144,103.20-198,854.16-80,445.03

Finding the Fourth Proportional to 144,103.20, 198,854.16 and 80,445.03

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Solution

The fourth proportional to 144,103.20, 198,854.16 and 80,445.03 is: 111,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,103.20 : 198,854.16 = 80,445.03 : x
  2. Step 2: Convert to fraction form
    144,103.20/198,854.16 = 80,445.03/x
  3. Step 3: Cross multiply
    144,103.20x = 198,854.16 × 80,445.03
  4. Step 4: Simplify right side
    144,103.20x = 15,996,828,866.82
  5. Step 5: Solve for x
    x = 15,996,828,866.82/144,103.20
  6. Step 6: Final answer
    x = 111,009.53

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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.