Home / 144,039.22-198,774.13-79,508.47

Finding the Fourth Proportional to 144,039.22, 198,774.13 and 79,508.47

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Solution

The fourth proportional to 144,039.22, 198,774.13 and 79,508.47 is: 109,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.22 : 198,774.13 = 79,508.47 : x
  2. Step 2: Convert to fraction form
    144,039.22/198,774.13 = 79,508.47/x
  3. Step 3: Cross multiply
    144,039.22x = 198,774.13 × 79,508.47
  4. Step 4: Simplify right side
    144,039.22x = 15,804,226,951.88
  5. Step 5: Solve for x
    x = 15,804,226,951.88/144,039.22
  6. Step 6: Final answer
    x = 109,721.69

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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.