Home / 131,179.16-181,020.84-74,589.32

Finding the Fourth Proportional to 131,179.16, 181,020.84 and 74,589.32

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Solution

The fourth proportional to 131,179.16, 181,020.84 and 74,589.32 is: 102,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,179.16 : 181,020.84 = 74,589.32 : x
  2. Step 2: Convert to fraction form
    131,179.16/181,020.84 = 74,589.32/x
  3. Step 3: Cross multiply
    131,179.16x = 181,020.84 × 74,589.32
  4. Step 4: Simplify right side
    131,179.16x = 13,502,221,361.43
  5. Step 5: Solve for x
    x = 13,502,221,361.43/131,179.16
  6. Step 6: Final answer
    x = 102,929.62

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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.