Home / 131,474.88-181,448.64-74,891.52

Finding the Fourth Proportional to 131,474.88, 181,448.64 and 74,891.52

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Solution

The fourth proportional to 131,474.88, 181,448.64 and 74,891.52 is: 103,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,474.88 : 181,448.64 = 74,891.52 : x
  2. Step 2: Convert to fraction form
    131,474.88/181,448.64 = 74,891.52/x
  3. Step 3: Cross multiply
    131,474.88x = 181,448.64 × 74,891.52
  4. Step 4: Simplify right side
    131,474.88x = 13,588,964,451.53
  5. Step 5: Solve for x
    x = 13,588,964,451.53/131,474.88
  6. Step 6: Final answer
    x = 103,357.88

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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.