Home / 143,607.44-198,178.17-79,960.26

Finding the Fourth Proportional to 143,607.44, 198,178.17 and 79,960.26

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Solution

The fourth proportional to 143,607.44, 198,178.17 and 79,960.26 is: 110,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,607.44 : 198,178.17 = 79,960.26 : x
  2. Step 2: Convert to fraction form
    143,607.44/198,178.17 = 79,960.26/x
  3. Step 3: Cross multiply
    143,607.44x = 198,178.17 × 79,960.26
  4. Step 4: Simplify right side
    143,607.44x = 15,846,377,999.52
  5. Step 5: Solve for x
    x = 15,846,377,999.52/143,607.44
  6. Step 6: Final answer
    x = 110,345.11

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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.