Home / 108,781.74-163,142.91-29,877.21

Finding the Fourth Proportional to 108,781.74, 163,142.91 and 29,877.21

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Solution

The fourth proportional to 108,781.74, 163,142.91 and 29,877.21 is: 44,807.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,781.74 : 163,142.91 = 29,877.21 : x
  2. Step 2: Convert to fraction form
    108,781.74/163,142.91 = 29,877.21/x
  3. Step 3: Cross multiply
    108,781.74x = 163,142.91 × 29,877.21
  4. Step 4: Simplify right side
    108,781.74x = 4,874,254,982.08
  5. Step 5: Solve for x
    x = 4,874,254,982.08/108,781.74
  6. Step 6: Final answer
    x = 44,807.66

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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.