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Finding the Fourth Proportional to 108,127.62, 162,173.82 and 37,990.56

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Solution

The fourth proportional to 108,127.62, 162,173.82 and 37,990.56 is: 56,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,127.62 : 162,173.82 = 37,990.56 : x
  2. Step 2: Convert to fraction form
    108,127.62/162,173.82 = 37,990.56/x
  3. Step 3: Cross multiply
    108,127.62x = 162,173.82 × 37,990.56
  4. Step 4: Simplify right side
    108,127.62x = 6,161,074,239.14
  5. Step 5: Solve for x
    x = 6,161,074,239.14/108,127.62
  6. Step 6: Final answer
    x = 56,979.65

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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.