Home / 154,046.40-231,069.60-43,238.40

Finding the Fourth Proportional to 154,046.40, 231,069.60 and 43,238.40

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Solution

The fourth proportional to 154,046.40, 231,069.60 and 43,238.40 is: 64,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,046.40 : 231,069.60 = 43,238.40 : x
  2. Step 2: Convert to fraction form
    154,046.40/231,069.60 = 43,238.40/x
  3. Step 3: Cross multiply
    154,046.40x = 231,069.60 × 43,238.40
  4. Step 4: Simplify right side
    154,046.40x = 9,991,079,792.64
  5. Step 5: Solve for x
    x = 9,991,079,792.64/154,046.40
  6. Step 6: Final answer
    x = 64,857.60

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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.