Home / 108,746.72-163,020.36-42,169.76

Finding the Fourth Proportional to 108,746.72, 163,020.36 and 42,169.76

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Solution

The fourth proportional to 108,746.72, 163,020.36 and 42,169.76 is: 63,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,746.72 : 163,020.36 = 42,169.76 : x
  2. Step 2: Convert to fraction form
    108,746.72/163,020.36 = 42,169.76/x
  3. Step 3: Cross multiply
    108,746.72x = 163,020.36 × 42,169.76
  4. Step 4: Simplify right side
    108,746.72x = 6,874,529,456.31
  5. Step 5: Solve for x
    x = 6,874,529,456.31/108,746.72
  6. Step 6: Final answer
    x = 63,215.97

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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.