Home / 108,878.72-163,337.31-49,720.37

Finding the Fourth Proportional to 108,878.72, 163,337.31 and 49,720.37

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Solution

The fourth proportional to 108,878.72, 163,337.31 and 49,720.37 is: 74,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,878.72 : 163,337.31 = 49,720.37 : x
  2. Step 2: Convert to fraction form
    108,878.72/163,337.31 = 49,720.37/x
  3. Step 3: Cross multiply
    108,878.72x = 163,337.31 × 49,720.37
  4. Step 4: Simplify right side
    108,878.72x = 8,121,190,671.32
  5. Step 5: Solve for x
    x = 8,121,190,671.32/108,878.72
  6. Step 6: Final answer
    x = 74,589.33

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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.