Home / 143,350.29-197,832.51-79,687.80

Finding the Fourth Proportional to 143,350.29, 197,832.51 and 79,687.80

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Solution

The fourth proportional to 143,350.29, 197,832.51 and 79,687.80 is: 109,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,350.29 : 197,832.51 = 79,687.80 : x
  2. Step 2: Convert to fraction form
    143,350.29/197,832.51 = 79,687.80/x
  3. Step 3: Cross multiply
    143,350.29x = 197,832.51 × 79,687.80
  4. Step 4: Simplify right side
    143,350.29x = 15,764,837,490.38
  5. Step 5: Solve for x
    x = 15,764,837,490.38/143,350.29
  6. Step 6: Final answer
    x = 109,974.23

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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.