Home / 143,966.12-198,671.96-79,435.96

Finding the Fourth Proportional to 143,966.12, 198,671.96 and 79,435.96

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Solution

The fourth proportional to 143,966.12, 198,671.96 and 79,435.96 is: 109,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,966.12 : 198,671.96 = 79,435.96 : x
  2. Step 2: Convert to fraction form
    143,966.12/198,671.96 = 79,435.96/x
  3. Step 3: Cross multiply
    143,966.12x = 198,671.96 × 79,435.96
  4. Step 4: Simplify right side
    143,966.12x = 15,781,697,867.68
  5. Step 5: Solve for x
    x = 15,781,697,867.68/143,966.12
  6. Step 6: Final answer
    x = 109,620.92

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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.