Home / 132,811.11-183,274.68-72,380.54

Finding the Fourth Proportional to 132,811.11, 183,274.68 and 72,380.54

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Solution

The fourth proportional to 132,811.11, 183,274.68 and 72,380.54 is: 99,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,811.11 : 183,274.68 = 72,380.54 : x
  2. Step 2: Convert to fraction form
    132,811.11/183,274.68 = 72,380.54/x
  3. Step 3: Cross multiply
    132,811.11x = 183,274.68 × 72,380.54
  4. Step 4: Simplify right side
    132,811.11x = 13,265,521,036.34
  5. Step 5: Solve for x
    x = 13,265,521,036.34/132,811.11
  6. Step 6: Final answer
    x = 99,882.62

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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.