Home / 131,293.87-181,186.29-74,705.26

Finding the Fourth Proportional to 131,293.87, 181,186.29 and 74,705.26

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Solution

The fourth proportional to 131,293.87, 181,186.29 and 74,705.26 is: 103,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,293.87 : 181,186.29 = 74,705.26 : x
  2. Step 2: Convert to fraction form
    131,293.87/181,186.29 = 74,705.26/x
  3. Step 3: Cross multiply
    131,293.87x = 181,186.29 × 74,705.26
  4. Step 4: Simplify right side
    131,293.87x = 13,535,568,902.89
  5. Step 5: Solve for x
    x = 13,535,568,902.89/131,293.87
  6. Step 6: Final answer
    x = 103,093.69

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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.