Home / 143,739.56-198,360.90-80,079.63

Finding the Fourth Proportional to 143,739.56, 198,360.90 and 80,079.63

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Solution

The fourth proportional to 143,739.56, 198,360.90 and 80,079.63 is: 110,510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,739.56 : 198,360.90 = 80,079.63 : x
  2. Step 2: Convert to fraction form
    143,739.56/198,360.90 = 80,079.63/x
  3. Step 3: Cross multiply
    143,739.56x = 198,360.90 × 80,079.63
  4. Step 4: Simplify right side
    143,739.56x = 15,884,667,478.47
  5. Step 5: Solve for x
    x = 15,884,667,478.47/143,739.56
  6. Step 6: Final answer
    x = 110,510.06

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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.