Home / 144,119.80-198,877.28-80,461.68

Finding the Fourth Proportional to 144,119.80, 198,877.28 and 80,461.68

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Solution

The fourth proportional to 144,119.80, 198,877.28 and 80,461.68 is: 111,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,119.80 : 198,877.28 = 80,461.68 : x
  2. Step 2: Convert to fraction form
    144,119.80/198,877.28 = 80,461.68/x
  3. Step 3: Cross multiply
    144,119.80x = 198,877.28 × 80,461.68
  4. Step 4: Simplify right side
    144,119.80x = 16,002,000,062.63
  5. Step 5: Solve for x
    x = 16,002,000,062.63/144,119.80
  6. Step 6: Final answer
    x = 111,032.63

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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.