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Finding the Fourth Proportional to 133,260.84, 183,882.20 and 85,578.76

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Solution

The fourth proportional to 133,260.84, 183,882.20 and 85,578.76 is: 118,087.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,260.84 : 183,882.20 = 85,578.76 : x
  2. Step 2: Convert to fraction form
    133,260.84/183,882.20 = 85,578.76/x
  3. Step 3: Cross multiply
    133,260.84x = 183,882.20 × 85,578.76
  4. Step 4: Simplify right side
    133,260.84x = 15,736,410,662.07
  5. Step 5: Solve for x
    x = 15,736,410,662.07/133,260.84
  6. Step 6: Final answer
    x = 118,087.28

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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.