Home / 154,519.90-231,816-47,898.31

Finding the Fourth Proportional to 154,519.90, 231,816 and 47,898.31

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Solution

The fourth proportional to 154,519.90, 231,816 and 47,898.31 is: 71,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,519.90 : 231,816 = 47,898.31 : x
  2. Step 2: Convert to fraction form
    154,519.90/231,816 = 47,898.31/x
  3. Step 3: Cross multiply
    154,519.90x = 231,816 × 47,898.31
  4. Step 4: Simplify right side
    154,519.90x = 11,103,594,630.96
  5. Step 5: Solve for x
    x = 11,103,594,630.96/154,519.90
  6. Step 6: Final answer
    x = 71,858.67

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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.