Home / 144,671.32-199,641.90-80,137.96

Finding the Fourth Proportional to 144,671.32, 199,641.90 and 80,137.96

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Solution

The fourth proportional to 144,671.32, 199,641.90 and 80,137.96 is: 110,587.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,671.32 : 199,641.90 = 80,137.96 : x
  2. Step 2: Convert to fraction form
    144,671.32/199,641.90 = 80,137.96/x
  3. Step 3: Cross multiply
    144,671.32x = 199,641.90 × 80,137.96
  4. Step 4: Simplify right side
    144,671.32x = 15,998,895,520.92
  5. Step 5: Solve for x
    x = 15,998,895,520.92/144,671.32
  6. Step 6: Final answer
    x = 110,587.89

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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.