Home / 214,986.60-322,364.70-90,186.60

Finding the Fourth Proportional to 214,986.60, 322,364.70 and 90,186.60

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Solution

The fourth proportional to 214,986.60, 322,364.70 and 90,186.60 is: 135,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,986.60 : 322,364.70 = 90,186.60 : x
  2. Step 2: Convert to fraction form
    214,986.60/322,364.70 = 90,186.60/x
  3. Step 3: Cross multiply
    214,986.60x = 322,364.70 × 90,186.60
  4. Step 4: Simplify right side
    214,986.60x = 29,072,976,253.02
  5. Step 5: Solve for x
    x = 29,072,976,253.02/214,986.60
  6. Step 6: Final answer
    x = 135,231.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.