Home / 131,537.13-181,478.22-80,496.65

Finding the Fourth Proportional to 131,537.13, 181,478.22 and 80,496.65

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Solution

The fourth proportional to 131,537.13, 181,478.22 and 80,496.65 is: 111,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.13 : 181,478.22 = 80,496.65 : x
  2. Step 2: Convert to fraction form
    131,537.13/181,478.22 = 80,496.65/x
  3. Step 3: Cross multiply
    131,537.13x = 181,478.22 × 80,496.65
  4. Step 4: Simplify right side
    131,537.13x = 14,608,389,362.59
  5. Step 5: Solve for x
    x = 14,608,389,362.59/131,537.13
  6. Step 6: Final answer
    x = 111,059.05

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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.