Home / 131,481.25-197,123.46-42,681.76

Finding the Fourth Proportional to 131,481.25, 197,123.46 and 42,681.76

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Solution

The fourth proportional to 131,481.25, 197,123.46 and 42,681.76 is: 63,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,481.25 : 197,123.46 = 42,681.76 : x
  2. Step 2: Convert to fraction form
    131,481.25/197,123.46 = 42,681.76/x
  3. Step 3: Cross multiply
    131,481.25x = 197,123.46 × 42,681.76
  4. Step 4: Simplify right side
    131,481.25x = 8,413,576,210.09
  5. Step 5: Solve for x
    x = 8,413,576,210.09/131,481.25
  6. Step 6: Final answer
    x = 63,990.69

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1.5x scale

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.