Home / 144,006.48-198,738.50-80,345.66

Finding the Fourth Proportional to 144,006.48, 198,738.50 and 80,345.66

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Solution

The fourth proportional to 144,006.48, 198,738.50 and 80,345.66 is: 110,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,006.48 : 198,738.50 = 80,345.66 : x
  2. Step 2: Convert to fraction form
    144,006.48/198,738.50 = 80,345.66/x
  3. Step 3: Cross multiply
    144,006.48x = 198,738.50 × 80,345.66
  4. Step 4: Simplify right side
    144,006.48x = 15,967,774,554.49
  5. Step 5: Solve for x
    x = 15,967,774,554.49/144,006.48
  6. Step 6: Final answer
    x = 110,882.33

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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.