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Finding the Fourth Proportional to 183,631, 275,563.02 and 78,450.76

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Solution

The fourth proportional to 183,631, 275,563.02 and 78,450.76 is: 117,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,631 : 275,563.02 = 78,450.76 : x
  2. Step 2: Convert to fraction form
    183,631/275,563.02 = 78,450.76/x
  3. Step 3: Cross multiply
    183,631x = 275,563.02 × 78,450.76
  4. Step 4: Simplify right side
    183,631x = 21,618,128,346.90
  5. Step 5: Solve for x
    x = 21,618,128,346.90/183,631
  6. Step 6: Final answer
    x = 117,725.92

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1.5x scale

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.