Home / 144,343.28-199,185.68-79,808.78

Finding the Fourth Proportional to 144,343.28, 199,185.68 and 79,808.78

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Solution

The fourth proportional to 144,343.28, 199,185.68 and 79,808.78 is: 110,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,343.28 : 199,185.68 = 79,808.78 : x
  2. Step 2: Convert to fraction form
    144,343.28/199,185.68 = 79,808.78/x
  3. Step 3: Cross multiply
    144,343.28x = 199,185.68 × 79,808.78
  4. Step 4: Simplify right side
    144,343.28x = 15,896,766,114.27
  5. Step 5: Solve for x
    x = 15,896,766,114.27/144,343.28
  6. Step 6: Final answer
    x = 110,131.67

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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.