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Finding the Fourth Proportional to 109,104.31, 150,561.59 and 63,165.89

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Solution

The fourth proportional to 109,104.31, 150,561.59 and 63,165.89 is: 87,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,104.31 : 150,561.59 = 63,165.89 : x
  2. Step 2: Convert to fraction form
    109,104.31/150,561.59 = 63,165.89/x
  3. Step 3: Cross multiply
    109,104.31x = 150,561.59 × 63,165.89
  4. Step 4: Simplify right side
    109,104.31x = 9,510,356,941.41
  5. Step 5: Solve for x
    x = 9,510,356,941.41/109,104.31
  6. Step 6: Final answer
    x = 87,167.56

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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.