Home / 143,724.30-198,345.51-80,062.08

Finding the Fourth Proportional to 143,724.30, 198,345.51 and 80,062.08

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Solution

The fourth proportional to 143,724.30, 198,345.51 and 80,062.08 is: 110,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,724.30 : 198,345.51 = 80,062.08 : x
  2. Step 2: Convert to fraction form
    143,724.30/198,345.51 = 80,062.08/x
  3. Step 3: Cross multiply
    143,724.30x = 198,345.51 × 80,062.08
  4. Step 4: Simplify right side
    143,724.30x = 15,879,954,089.26
  5. Step 5: Solve for x
    x = 15,879,954,089.26/143,724.30
  6. Step 6: Final answer
    x = 110,489.00

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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.