Home / 131,769.99-181,840.41-71,340.08

Finding the Fourth Proportional to 131,769.99, 181,840.41 and 71,340.08

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Solution

The fourth proportional to 131,769.99, 181,840.41 and 71,340.08 is: 98,448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,769.99 : 181,840.41 = 71,340.08 : x
  2. Step 2: Convert to fraction form
    131,769.99/181,840.41 = 71,340.08/x
  3. Step 3: Cross multiply
    131,769.99x = 181,840.41 × 71,340.08
  4. Step 4: Simplify right side
    131,769.99x = 12,972,508,487.43
  5. Step 5: Solve for x
    x = 12,972,508,487.43/131,769.99
  6. Step 6: Final answer
    x = 98,448.13

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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.