Home / 144,760.13-199,767.89-81,098.45

Finding the Fourth Proportional to 144,760.13, 199,767.89 and 81,098.45

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Solution

The fourth proportional to 144,760.13, 199,767.89 and 81,098.45 is: 111,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,760.13 : 199,767.89 = 81,098.45 : x
  2. Step 2: Convert to fraction form
    144,760.13/199,767.89 = 81,098.45/x
  3. Step 3: Cross multiply
    144,760.13x = 199,767.89 × 81,098.45
  4. Step 4: Simplify right side
    144,760.13x = 16,200,865,833.28
  5. Step 5: Solve for x
    x = 16,200,865,833.28/144,760.13
  6. Step 6: Final answer
    x = 111,915.25

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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.