Home / 154,605.88-231,905.53-42,286.10

Finding the Fourth Proportional to 154,605.88, 231,905.53 and 42,286.10

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Solution

The fourth proportional to 154,605.88, 231,905.53 and 42,286.10 is: 63,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,605.88 : 231,905.53 = 42,286.10 : x
  2. Step 2: Convert to fraction form
    154,605.88/231,905.53 = 42,286.10/x
  3. Step 3: Cross multiply
    154,605.88x = 231,905.53 × 42,286.10
  4. Step 4: Simplify right side
    154,605.88x = 9,806,380,432.13
  5. Step 5: Solve for x
    x = 9,806,380,432.13/154,605.88
  6. Step 6: Final answer
    x = 63,428.25

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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.