Home / 108,901.37-163,358.19-38,780.69

Finding the Fourth Proportional to 108,901.37, 163,358.19 and 38,780.69

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Solution

The fourth proportional to 108,901.37, 163,358.19 and 38,780.69 is: 58,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,901.37 : 163,358.19 = 38,780.69 : x
  2. Step 2: Convert to fraction form
    108,901.37/163,358.19 = 38,780.69/x
  3. Step 3: Cross multiply
    108,901.37x = 163,358.19 × 38,780.69
  4. Step 4: Simplify right side
    108,901.37x = 6,335,142,508.56
  5. Step 5: Solve for x
    x = 6,335,142,508.56/108,901.37
  6. Step 6: Final answer
    x = 58,173.21

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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.