Home / 143,669.70-198,266.13-80,009.10

Finding the Fourth Proportional to 143,669.70, 198,266.13 and 80,009.10

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Solution

The fourth proportional to 143,669.70, 198,266.13 and 80,009.10 is: 110,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,669.70 : 198,266.13 = 80,009.10 : x
  2. Step 2: Convert to fraction form
    143,669.70/198,266.13 = 80,009.10/x
  3. Step 3: Cross multiply
    143,669.70x = 198,266.13 × 80,009.10
  4. Step 4: Simplify right side
    143,669.70x = 15,863,094,621.78
  5. Step 5: Solve for x
    x = 15,863,094,621.78/143,669.70
  6. Step 6: Final answer
    x = 110,413.64

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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.