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Finding the Fourth Proportional to 133,282.82, 183,912.54 and 85,600.76

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Solution

The fourth proportional to 133,282.82, 183,912.54 and 85,600.76 is: 118,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,282.82 : 183,912.54 = 85,600.76 : x
  2. Step 2: Convert to fraction form
    133,282.82/183,912.54 = 85,600.76/x
  3. Step 3: Cross multiply
    133,282.82x = 183,912.54 × 85,600.76
  4. Step 4: Simplify right side
    133,282.82x = 15,743,053,197.53
  5. Step 5: Solve for x
    x = 15,743,053,197.53/133,282.82
  6. Step 6: Final answer
    x = 118,117.65

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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.