Home / 143,742.56-198,365.04-80,082.63

Finding the Fourth Proportional to 143,742.56, 198,365.04 and 80,082.63

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Solution

The fourth proportional to 143,742.56, 198,365.04 and 80,082.63 is: 110,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,742.56 : 198,365.04 = 80,082.63 : x
  2. Step 2: Convert to fraction form
    143,742.56/198,365.04 = 80,082.63/x
  3. Step 3: Cross multiply
    143,742.56x = 198,365.04 × 80,082.63
  4. Step 4: Simplify right side
    143,742.56x = 15,885,594,103.26
  5. Step 5: Solve for x
    x = 15,885,594,103.26/143,742.56
  6. Step 6: Final answer
    x = 110,514.20

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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.