Home / 204,008.40-306,061.20-98,740.80

Finding the Fourth Proportional to 204,008.40, 306,061.20 and 98,740.80

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Solution

The fourth proportional to 204,008.40, 306,061.20 and 98,740.80 is: 148,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,008.40 : 306,061.20 = 98,740.80 : x
  2. Step 2: Convert to fraction form
    204,008.40/306,061.20 = 98,740.80/x
  3. Step 3: Cross multiply
    204,008.40x = 306,061.20 × 98,740.80
  4. Step 4: Simplify right side
    204,008.40x = 30,220,727,736.96
  5. Step 5: Solve for x
    x = 30,220,727,736.96/204,008.40
  6. Step 6: Final answer
    x = 148,134.72

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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.