Home / 154,584.87-231,899.32-47,978.04

Finding the Fourth Proportional to 154,584.87, 231,899.32 and 47,978.04

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Solution

The fourth proportional to 154,584.87, 231,899.32 and 47,978.04 is: 71,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,584.87 : 231,899.32 = 47,978.04 : x
  2. Step 2: Convert to fraction form
    154,584.87/231,899.32 = 47,978.04/x
  3. Step 3: Cross multiply
    154,584.87x = 231,899.32 × 47,978.04
  4. Step 4: Simplify right side
    154,584.87x = 11,126,074,993.37
  5. Step 5: Solve for x
    x = 11,126,074,993.37/154,584.87
  6. Step 6: Final answer
    x = 71,973.89

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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.