Home / 132,872.94-183,368.12-81,919.34

Finding the Fourth Proportional to 132,872.94, 183,368.12 and 81,919.34

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Solution

The fourth proportional to 132,872.94, 183,368.12 and 81,919.34 is: 113,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872.94 : 183,368.12 = 81,919.34 : x
  2. Step 2: Convert to fraction form
    132,872.94/183,368.12 = 81,919.34/x
  3. Step 3: Cross multiply
    132,872.94x = 183,368.12 × 81,919.34
  4. Step 4: Simplify right side
    132,872.94x = 15,021,395,367.44
  5. Step 5: Solve for x
    x = 15,021,395,367.44/132,872.94
  6. Step 6: Final answer
    x = 113,050.82

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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.