Home / 98,007.23-146,997-31,438.72

Finding the Fourth Proportional to 98,007.23, 146,997 and 31,438.72

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Solution

The fourth proportional to 98,007.23, 146,997 and 31,438.72 is: 47,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,007.23 : 146,997 = 31,438.72 : x
  2. Step 2: Convert to fraction form
    98,007.23/146,997 = 31,438.72/x
  3. Step 3: Cross multiply
    98,007.23x = 146,997 × 31,438.72
  4. Step 4: Simplify right side
    98,007.23x = 4,621,396,788.86
  5. Step 5: Solve for x
    x = 4,621,396,788.86/98,007.23
  6. Step 6: Final answer
    x = 47,153.63

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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.