Home / 131,577.12-181,565.46-74,213.28

Finding the Fourth Proportional to 131,577.12, 181,565.46 and 74,213.28

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Solution

The fourth proportional to 131,577.12, 181,565.46 and 74,213.28 is: 102,408.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577.12 : 181,565.46 = 74,213.28 : x
  2. Step 2: Convert to fraction form
    131,577.12/181,565.46 = 74,213.28/x
  3. Step 3: Cross multiply
    131,577.12x = 181,565.46 × 74,213.28
  4. Step 4: Simplify right side
    131,577.12x = 13,474,568,321.31
  5. Step 5: Solve for x
    x = 13,474,568,321.31/131,577.12
  6. Step 6: Final answer
    x = 102,408.14

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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.