Home / 144,426.13-199,302.19-79,013.90

Finding the Fourth Proportional to 144,426.13, 199,302.19 and 79,013.90

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Solution

The fourth proportional to 144,426.13, 199,302.19 and 79,013.90 is: 109,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,426.13 : 199,302.19 = 79,013.90 : x
  2. Step 2: Convert to fraction form
    144,426.13/199,302.19 = 79,013.90/x
  3. Step 3: Cross multiply
    144,426.13x = 199,302.19 × 79,013.90
  4. Step 4: Simplify right side
    144,426.13x = 15,747,643,611.16
  5. Step 5: Solve for x
    x = 15,747,643,611.16/144,426.13
  6. Step 6: Final answer
    x = 109,035.97

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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.