Home / 155,942.11-215,201.33-86,093.58

Finding the Fourth Proportional to 155,942.11, 215,201.33 and 86,093.58

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Solution

The fourth proportional to 155,942.11, 215,201.33 and 86,093.58 is: 118,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,942.11 : 215,201.33 = 86,093.58 : x
  2. Step 2: Convert to fraction form
    155,942.11/215,201.33 = 86,093.58/x
  3. Step 3: Cross multiply
    155,942.11x = 215,201.33 × 86,093.58
  4. Step 4: Simplify right side
    155,942.11x = 18,527,452,920.46
  5. Step 5: Solve for x
    x = 18,527,452,920.46/155,942.11
  6. Step 6: Final answer
    x = 118,809.81

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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.