Home / 108,637.64-162,855.42-42,121.16

Finding the Fourth Proportional to 108,637.64, 162,855.42 and 42,121.16

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Solution

The fourth proportional to 108,637.64, 162,855.42 and 42,121.16 is: 63,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,637.64 : 162,855.42 = 42,121.16 : x
  2. Step 2: Convert to fraction form
    108,637.64/162,855.42 = 42,121.16/x
  3. Step 3: Cross multiply
    108,637.64x = 162,855.42 × 42,121.16
  4. Step 4: Simplify right side
    108,637.64x = 6,859,659,202.69
  5. Step 5: Solve for x
    x = 6,859,659,202.69/108,637.64
  6. Step 6: Final answer
    x = 63,142.56

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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.