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Finding the Fourth Proportional to 108,800.21, 163,101.90 and 38,663.12

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Solution

The fourth proportional to 108,800.21, 163,101.90 and 38,663.12 is: 57,959.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,800.21 : 163,101.90 = 38,663.12 : x
  2. Step 2: Convert to fraction form
    108,800.21/163,101.90 = 38,663.12/x
  3. Step 3: Cross multiply
    108,800.21x = 163,101.90 × 38,663.12
  4. Step 4: Simplify right side
    108,800.21x = 6,306,028,884.67
  5. Step 5: Solve for x
    x = 6,306,028,884.67/108,800.21
  6. Step 6: Final answer
    x = 57,959.71

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1.5x scale

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.