Home / 149,445.41-206,234.91-81,462.92

Finding the Fourth Proportional to 149,445.41, 206,234.91 and 81,462.92

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Solution

The fourth proportional to 149,445.41, 206,234.91 and 81,462.92 is: 112,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,445.41 : 206,234.91 = 81,462.92 : x
  2. Step 2: Convert to fraction form
    149,445.41/206,234.91 = 81,462.92/x
  3. Step 3: Cross multiply
    149,445.41x = 206,234.91 × 81,462.92
  4. Step 4: Simplify right side
    149,445.41x = 16,800,496,943.36
  5. Step 5: Solve for x
    x = 16,800,496,943.36/149,445.41
  6. Step 6: Final answer
    x = 112,418.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.