Home / 143,601.08-198,164.14-79,937.51

Finding the Fourth Proportional to 143,601.08, 198,164.14 and 79,937.51

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Solution

The fourth proportional to 143,601.08, 198,164.14 and 79,937.51 is: 110,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,601.08 : 198,164.14 = 79,937.51 : x
  2. Step 2: Convert to fraction form
    143,601.08/198,164.14 = 79,937.51/x
  3. Step 3: Cross multiply
    143,601.08x = 198,164.14 × 79,937.51
  4. Step 4: Simplify right side
    143,601.08x = 15,840,746,732.23
  5. Step 5: Solve for x
    x = 15,840,746,732.23/143,601.08
  6. Step 6: Final answer
    x = 110,310.78

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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.