Home / 109,764.32-151,481.76-67,317.08

Finding the Fourth Proportional to 109,764.32, 151,481.76 and 67,317.08

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Solution

The fourth proportional to 109,764.32, 151,481.76 and 67,317.08 is: 92,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,764.32 : 151,481.76 = 67,317.08 : x
  2. Step 2: Convert to fraction form
    109,764.32/151,481.76 = 67,317.08/x
  3. Step 3: Cross multiply
    109,764.32x = 151,481.76 × 67,317.08
  4. Step 4: Simplify right side
    109,764.32x = 10,197,309,756.46
  5. Step 5: Solve for x
    x = 10,197,309,756.46/109,764.32
  6. Step 6: Final answer
    x = 92,901.86

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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.