Home / 108,932.88-163,539.26-83,988.78

Finding the Fourth Proportional to 108,932.88, 163,539.26 and 83,988.78

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Solution

The fourth proportional to 108,932.88, 163,539.26 and 83,988.78 is: 126,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,932.88 : 163,539.26 = 83,988.78 : x
  2. Step 2: Convert to fraction form
    108,932.88/163,539.26 = 83,988.78/x
  3. Step 3: Cross multiply
    108,932.88x = 163,539.26 × 83,988.78
  4. Step 4: Simplify right side
    108,932.88x = 13,735,462,929.50
  5. Step 5: Solve for x
    x = 13,735,462,929.50/108,932.88
  6. Step 6: Final answer
    x = 126,091.07

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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.