Home / 143,961.17-198,666.63-80,303.04

Finding the Fourth Proportional to 143,961.17, 198,666.63 and 80,303.04

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Solution

The fourth proportional to 143,961.17, 198,666.63 and 80,303.04 is: 110,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,961.17 : 198,666.63 = 80,303.04 : x
  2. Step 2: Convert to fraction form
    143,961.17/198,666.63 = 80,303.04/x
  3. Step 3: Cross multiply
    143,961.17x = 198,666.63 × 80,303.04
  4. Step 4: Simplify right side
    143,961.17x = 15,953,534,335.56
  5. Step 5: Solve for x
    x = 15,953,534,335.56/143,961.17
  6. Step 6: Final answer
    x = 110,818.32

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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.