Home / 108,889.89-163,357.92-38,769

Finding the Fourth Proportional to 108,889.89, 163,357.92 and 38,769

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Solution

The fourth proportional to 108,889.89, 163,357.92 and 38,769 is: 58,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,889.89 : 163,357.92 = 38,769 : x
  2. Step 2: Convert to fraction form
    108,889.89/163,357.92 = 38,769/x
  3. Step 3: Cross multiply
    108,889.89x = 163,357.92 × 38,769
  4. Step 4: Simplify right side
    108,889.89x = 6,333,223,200.48
  5. Step 5: Solve for x
    x = 6,333,223,200.48/108,889.89
  6. Step 6: Final answer
    x = 58,161.72

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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.