Home / 102,558.90-153,860.61-31,481.82

Finding the Fourth Proportional to 102,558.90, 153,860.61 and 31,481.82

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Solution

The fourth proportional to 102,558.90, 153,860.61 and 31,481.82 is: 47,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,558.90 : 153,860.61 = 31,481.82 : x
  2. Step 2: Convert to fraction form
    102,558.90/153,860.61 = 31,481.82/x
  3. Step 3: Cross multiply
    102,558.90x = 153,860.61 × 31,481.82
  4. Step 4: Simplify right side
    102,558.90x = 4,843,812,029.11
  5. Step 5: Solve for x
    x = 4,843,812,029.11/102,558.90
  6. Step 6: Final answer
    x = 47,229.56

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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.