Home / 131,456.38-181,409.80-71,027.04

Finding the Fourth Proportional to 131,456.38, 181,409.80 and 71,027.04

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Solution

The fourth proportional to 131,456.38, 181,409.80 and 71,027.04 is: 98,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,456.38 : 181,409.80 = 71,027.04 : x
  2. Step 2: Convert to fraction form
    131,456.38/181,409.80 = 71,027.04/x
  3. Step 3: Cross multiply
    131,456.38x = 181,409.80 × 71,027.04
  4. Step 4: Simplify right side
    131,456.38x = 12,885,001,120.99
  5. Step 5: Solve for x
    x = 12,885,001,120.99/131,456.38
  6. Step 6: Final answer
    x = 98,017.31

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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.