Home / 155,222.36-214,169.44-90,654.96

Finding the Fourth Proportional to 155,222.36, 214,169.44 and 90,654.96

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Solution

The fourth proportional to 155,222.36, 214,169.44 and 90,654.96 is: 125,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,222.36 : 214,169.44 = 90,654.96 : x
  2. Step 2: Convert to fraction form
    155,222.36/214,169.44 = 90,654.96/x
  3. Step 3: Cross multiply
    155,222.36x = 214,169.44 × 90,654.96
  4. Step 4: Simplify right side
    155,222.36x = 19,415,522,016.42
  5. Step 5: Solve for x
    x = 19,415,522,016.42/155,222.36
  6. Step 6: Final answer
    x = 125,081.99

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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.