Home / 108,976.32-150,383.52-66,605.76

Finding the Fourth Proportional to 108,976.32, 150,383.52 and 66,605.76

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Solution

The fourth proportional to 108,976.32, 150,383.52 and 66,605.76 is: 91,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,976.32 : 150,383.52 = 66,605.76 : x
  2. Step 2: Convert to fraction form
    108,976.32/150,383.52 = 66,605.76/x
  3. Step 3: Cross multiply
    108,976.32x = 150,383.52 × 66,605.76
  4. Step 4: Simplify right side
    108,976.32x = 10,016,408,641.08
  5. Step 5: Solve for x
    x = 10,016,408,641.08/108,976.32
  6. Step 6: Final answer
    x = 91,913.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.