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Finding the Fourth Proportional to 108,717, 150,029.73 and 63,426.12

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Solution

The fourth proportional to 108,717, 150,029.73 and 63,426.12 is: 87,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,717 : 150,029.73 = 63,426.12 : x
  2. Step 2: Convert to fraction form
    108,717/150,029.73 = 63,426.12/x
  3. Step 3: Cross multiply
    108,717x = 150,029.73 × 63,426.12
  4. Step 4: Simplify right side
    108,717x = 9,515,803,658.55
  5. Step 5: Solve for x
    x = 9,515,803,658.55/108,717
  6. Step 6: Final answer
    x = 87,528.20

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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.