Home / 155,218.08-214,226.72-91,571.52

Finding the Fourth Proportional to 155,218.08, 214,226.72 and 91,571.52

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Solution

The fourth proportional to 155,218.08, 214,226.72 and 91,571.52 is: 126,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,218.08 : 214,226.72 = 91,571.52 : x
  2. Step 2: Convert to fraction form
    155,218.08/214,226.72 = 91,571.52/x
  3. Step 3: Cross multiply
    155,218.08x = 214,226.72 × 91,571.52
  4. Step 4: Simplify right side
    155,218.08x = 19,617,066,375.01
  5. Step 5: Solve for x
    x = 19,617,066,375.01/155,218.08
  6. Step 6: Final answer
    x = 126,383.90

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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.