Home / 131,363.75-181,282.19-74,775.13

Finding the Fourth Proportional to 131,363.75, 181,282.19 and 74,775.13

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Solution

The fourth proportional to 131,363.75, 181,282.19 and 74,775.13 is: 103,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,363.75 : 181,282.19 = 74,775.13 : x
  2. Step 2: Convert to fraction form
    131,363.75/181,282.19 = 74,775.13/x
  3. Step 3: Cross multiply
    131,363.75x = 181,282.19 × 74,775.13
  4. Step 4: Simplify right side
    131,363.75x = 13,555,399,323.93
  5. Step 5: Solve for x
    x = 13,555,399,323.93/131,363.75
  6. Step 6: Final answer
    x = 103,189.80

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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.