Home / 135,751.86-203,332.55-91,180.80

Finding the Fourth Proportional to 135,751.86, 203,332.55 and 91,180.80

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Solution

The fourth proportional to 135,751.86, 203,332.55 and 91,180.80 is: 136,572.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,751.86 : 203,332.55 = 91,180.80 : x
  2. Step 2: Convert to fraction form
    135,751.86/203,332.55 = 91,180.80/x
  3. Step 3: Cross multiply
    135,751.86x = 203,332.55 × 91,180.80
  4. Step 4: Simplify right side
    135,751.86x = 18,540,024,119.14
  5. Step 5: Solve for x
    x = 18,540,024,119.14/135,751.86
  6. Step 6: Final answer
    x = 136,572.89

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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.