Home / 132,908.82-183,414.03-72,479.58

Finding the Fourth Proportional to 132,908.82, 183,414.03 and 72,479.58

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Solution

The fourth proportional to 132,908.82, 183,414.03 and 72,479.58 is: 100,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,908.82 : 183,414.03 = 72,479.58 : x
  2. Step 2: Convert to fraction form
    132,908.82/183,414.03 = 72,479.58/x
  3. Step 3: Cross multiply
    132,908.82x = 183,414.03 × 72,479.58
  4. Step 4: Simplify right side
    132,908.82x = 13,293,771,860.51
  5. Step 5: Solve for x
    x = 13,293,771,860.51/132,908.82
  6. Step 6: Final answer
    x = 100,021.74

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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.