Home / 131,471.91-181,431.23-71,042.56

Finding the Fourth Proportional to 131,471.91, 181,431.23 and 71,042.56

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Solution

The fourth proportional to 131,471.91, 181,431.23 and 71,042.56 is: 98,038.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471.91 : 181,431.23 = 71,042.56 : x
  2. Step 2: Convert to fraction form
    131,471.91/181,431.23 = 71,042.56/x
  3. Step 3: Cross multiply
    131,471.91x = 181,431.23 × 71,042.56
  4. Step 4: Simplify right side
    131,471.91x = 12,889,338,234.36
  5. Step 5: Solve for x
    x = 12,889,338,234.36/131,471.91
  6. Step 6: Final answer
    x = 98,038.72

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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.