Home / 131,415.30-197,171.55-42,671.70

Finding the Fourth Proportional to 131,415.30, 197,171.55 and 42,671.70

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Solution

The fourth proportional to 131,415.30, 197,171.55 and 42,671.70 is: 64,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,415.30 : 197,171.55 = 42,671.70 : x
  2. Step 2: Convert to fraction form
    131,415.30/197,171.55 = 42,671.70/x
  3. Step 3: Cross multiply
    131,415.30x = 197,171.55 × 42,671.70
  4. Step 4: Simplify right side
    131,415.30x = 8,413,645,230.14
  5. Step 5: Solve for x
    x = 8,413,645,230.14/131,415.30
  6. Step 6: Final answer
    x = 64,023.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.