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Finding the Fourth Proportional to 108,788, 150,132.50 and 63,458.80

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Solution

The fourth proportional to 108,788, 150,132.50 and 63,458.80 is: 87,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,788 : 150,132.50 = 63,458.80 : x
  2. Step 2: Convert to fraction form
    108,788/150,132.50 = 63,458.80/x
  3. Step 3: Cross multiply
    108,788x = 150,132.50 × 63,458.80
  4. Step 4: Simplify right side
    108,788x = 9,527,228,291
  5. Step 5: Solve for x
    x = 9,527,228,291/108,788
  6. Step 6: Final answer
    x = 87,576.10

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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.