Home / 131,633.25-181,653.87-74,284.71

Finding the Fourth Proportional to 131,633.25, 181,653.87 and 74,284.71

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Solution

The fourth proportional to 131,633.25, 181,653.87 and 74,284.71 is: 102,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,633.25 : 181,653.87 = 74,284.71 : x
  2. Step 2: Convert to fraction form
    131,633.25/181,653.87 = 74,284.71/x
  3. Step 3: Cross multiply
    131,633.25x = 181,653.87 × 74,284.71
  4. Step 4: Simplify right side
    131,633.25x = 13,494,105,053.33
  5. Step 5: Solve for x
    x = 13,494,105,053.33/131,633.25
  6. Step 6: Final answer
    x = 102,512.89

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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.