Home / 132,873.45-183,368.81-81,919.85

Finding the Fourth Proportional to 132,873.45, 183,368.81 and 81,919.85

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Solution

The fourth proportional to 132,873.45, 183,368.81 and 81,919.85 is: 113,051.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,873.45 : 183,368.81 = 81,919.85 : x
  2. Step 2: Convert to fraction form
    132,873.45/183,368.81 = 81,919.85/x
  3. Step 3: Cross multiply
    132,873.45x = 183,368.81 × 81,919.85
  4. Step 4: Simplify right side
    132,873.45x = 15,021,544,083.44
  5. Step 5: Solve for x
    x = 15,021,544,083.44/132,873.45
  6. Step 6: Final answer
    x = 113,051.51

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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.