Home / 131,458.20-197,187.30-89,467.80

Finding the Fourth Proportional to 131,458.20, 197,187.30 and 89,467.80

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Solution

The fourth proportional to 131,458.20, 197,187.30 and 89,467.80 is: 134,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,458.20 : 197,187.30 = 89,467.80 : x
  2. Step 2: Convert to fraction form
    131,458.20/197,187.30 = 89,467.80/x
  3. Step 3: Cross multiply
    131,458.20x = 197,187.30 × 89,467.80
  4. Step 4: Simplify right side
    131,458.20x = 17,641,913,918.94
  5. Step 5: Solve for x
    x = 17,641,913,918.94/131,458.20
  6. Step 6: Final answer
    x = 134,201.70

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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.