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Finding the Fourth Proportional to 99,167.94, 136,908.99 and 75,252.78

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Solution

The fourth proportional to 99,167.94, 136,908.99 and 75,252.78 is: 103,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,167.94 : 136,908.99 = 75,252.78 : x
  2. Step 2: Convert to fraction form
    99,167.94/136,908.99 = 75,252.78/x
  3. Step 3: Cross multiply
    99,167.94x = 136,908.99 × 75,252.78
  4. Step 4: Simplify right side
    99,167.94x = 10,302,782,104.49
  5. Step 5: Solve for x
    x = 10,302,782,104.49/99,167.94
  6. Step 6: Final answer
    x = 103,892.27

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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.