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Finding the Fourth Proportional to 99,938.75, 149,891.70 and 35,883.63

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Solution

The fourth proportional to 99,938.75, 149,891.70 and 35,883.63 is: 53,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,938.75 : 149,891.70 = 35,883.63 : x
  2. Step 2: Convert to fraction form
    99,938.75/149,891.70 = 35,883.63/x
  3. Step 3: Cross multiply
    99,938.75x = 149,891.70 × 35,883.63
  4. Step 4: Simplify right side
    99,938.75x = 5,378,658,302.87
  5. Step 5: Solve for x
    x = 5,378,658,302.87/99,938.75
  6. Step 6: Final answer
    x = 53,819.55

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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.