Home / 140,220.48-193,521.24-79,805.82

Finding the Fourth Proportional to 140,220.48, 193,521.24 and 79,805.82

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Solution

The fourth proportional to 140,220.48, 193,521.24 and 79,805.82 is: 110,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,220.48 : 193,521.24 = 79,805.82 : x
  2. Step 2: Convert to fraction form
    140,220.48/193,521.24 = 79,805.82/x
  3. Step 3: Cross multiply
    140,220.48x = 193,521.24 × 79,805.82
  4. Step 4: Simplify right side
    140,220.48x = 15,444,121,245.62
  5. Step 5: Solve for x
    x = 15,444,121,245.62/140,220.48
  6. Step 6: Final answer
    x = 110,141.69

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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.