Home / 143,728.30-198,351.03-80,066.08

Finding the Fourth Proportional to 143,728.30, 198,351.03 and 80,066.08

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Solution

The fourth proportional to 143,728.30, 198,351.03 and 80,066.08 is: 110,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,728.30 : 198,351.03 = 80,066.08 : x
  2. Step 2: Convert to fraction form
    143,728.30/198,351.03 = 80,066.08/x
  3. Step 3: Cross multiply
    143,728.30x = 198,351.03 × 80,066.08
  4. Step 4: Simplify right side
    143,728.30x = 15,881,189,436.06
  5. Step 5: Solve for x
    x = 15,881,189,436.06/143,728.30
  6. Step 6: Final answer
    x = 110,494.52

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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.