Home / 143,734.68-198,345.24-80,061.12

Finding the Fourth Proportional to 143,734.68, 198,345.24 and 80,061.12

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Solution

The fourth proportional to 143,734.68, 198,345.24 and 80,061.12 is: 110,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,734.68 : 198,345.24 = 80,061.12 : x
  2. Step 2: Convert to fraction form
    143,734.68/198,345.24 = 80,061.12/x
  3. Step 3: Cross multiply
    143,734.68x = 198,345.24 × 80,061.12
  4. Step 4: Simplify right side
    143,734.68x = 15,879,742,061.07
  5. Step 5: Solve for x
    x = 15,879,742,061.07/143,734.68
  6. Step 6: Final answer
    x = 110,479.55

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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.