Home / 144,021.45-198,747.90-79,491.18

Finding the Fourth Proportional to 144,021.45, 198,747.90 and 79,491.18

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Solution

The fourth proportional to 144,021.45, 198,747.90 and 79,491.18 is: 109,696.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,021.45 : 198,747.90 = 79,491.18 : x
  2. Step 2: Convert to fraction form
    144,021.45/198,747.90 = 79,491.18/x
  3. Step 3: Cross multiply
    144,021.45x = 198,747.90 × 79,491.18
  4. Step 4: Simplify right side
    144,021.45x = 15,798,705,093.52
  5. Step 5: Solve for x
    x = 15,798,705,093.52/144,021.45
  6. Step 6: Final answer
    x = 109,696.89

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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.