Home / 143,882.16-198,555.21-80,218.32

Finding the Fourth Proportional to 143,882.16, 198,555.21 and 80,218.32

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Solution

The fourth proportional to 143,882.16, 198,555.21 and 80,218.32 is: 110,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,882.16 : 198,555.21 = 80,218.32 : x
  2. Step 2: Convert to fraction form
    143,882.16/198,555.21 = 80,218.32/x
  3. Step 3: Cross multiply
    143,882.16x = 198,555.21 × 80,218.32
  4. Step 4: Simplify right side
    143,882.16x = 15,927,765,373.45
  5. Step 5: Solve for x
    x = 15,927,765,373.45/143,882.16
  6. Step 6: Final answer
    x = 110,700.07

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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.