Home / 154,286.79-231,430.19-65,478.03

Finding the Fourth Proportional to 154,286.79, 231,430.19 and 65,478.03

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Solution

The fourth proportional to 154,286.79, 231,430.19 and 65,478.03 is: 98,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,286.79 : 231,430.19 = 65,478.03 : x
  2. Step 2: Convert to fraction form
    154,286.79/231,430.19 = 65,478.03/x
  3. Step 3: Cross multiply
    154,286.79x = 231,430.19 × 65,478.03
  4. Step 4: Simplify right side
    154,286.79x = 15,153,592,923.73
  5. Step 5: Solve for x
    x = 15,153,592,923.73/154,286.79
  6. Step 6: Final answer
    x = 98,217.05

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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.