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Finding the Fourth Proportional to 151,430.80, 227,113.80 and 67,190.80

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Solution

The fourth proportional to 151,430.80, 227,113.80 and 67,190.80 is: 100,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,430.80 : 227,113.80 = 67,190.80 : x
  2. Step 2: Convert to fraction form
    151,430.80/227,113.80 = 67,190.80/x
  3. Step 3: Cross multiply
    151,430.80x = 227,113.80 × 67,190.80
  4. Step 4: Simplify right side
    151,430.80x = 15,259,957,913.04
  5. Step 5: Solve for x
    x = 15,259,957,913.04/151,430.80
  6. Step 6: Final answer
    x = 100,771.82

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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.