Home / 155,845.68-215,067.06-84,225.57

Finding the Fourth Proportional to 155,845.68, 215,067.06 and 84,225.57

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Solution

The fourth proportional to 155,845.68, 215,067.06 and 84,225.57 is: 116,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,845.68 : 215,067.06 = 84,225.57 : x
  2. Step 2: Convert to fraction form
    155,845.68/215,067.06 = 84,225.57/x
  3. Step 3: Cross multiply
    155,845.68x = 215,067.06 × 84,225.57
  4. Step 4: Simplify right side
    155,845.68x = 18,114,145,716.72
  5. Step 5: Solve for x
    x = 18,114,145,716.72/155,845.68
  6. Step 6: Final answer
    x = 116,231.30

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1.5x scale

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.