Home / 97,470.20-146,205.30-90,471.80

Finding the Fourth Proportional to 97,470.20, 146,205.30 and 90,471.80

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Solution

The fourth proportional to 97,470.20, 146,205.30 and 90,471.80 is: 135,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,470.20 : 146,205.30 = 90,471.80 : x
  2. Step 2: Convert to fraction form
    97,470.20/146,205.30 = 90,471.80/x
  3. Step 3: Cross multiply
    97,470.20x = 146,205.30 × 90,471.80
  4. Step 4: Simplify right side
    97,470.20x = 13,227,456,660.54
  5. Step 5: Solve for x
    x = 13,227,456,660.54/97,470.20
  6. Step 6: Final answer
    x = 135,707.70

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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.