Home / 144,072.15-198,817.78-79,541.91

Finding the Fourth Proportional to 144,072.15, 198,817.78 and 79,541.91

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Solution

The fourth proportional to 144,072.15, 198,817.78 and 79,541.91 is: 109,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,072.15 : 198,817.78 = 79,541.91 : x
  2. Step 2: Convert to fraction form
    144,072.15/198,817.78 = 79,541.91/x
  3. Step 3: Cross multiply
    144,072.15x = 198,817.78 × 79,541.91
  4. Step 4: Simplify right side
    144,072.15x = 15,814,345,565.45
  5. Step 5: Solve for x
    x = 15,814,345,565.45/144,072.15
  6. Step 6: Final answer
    x = 109,766.85

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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.