Home / 109,228.16-150,781.31-73,438.92

Finding the Fourth Proportional to 109,228.16, 150,781.31 and 73,438.92

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Solution

The fourth proportional to 109,228.16, 150,781.31 and 73,438.92 is: 101,376.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,228.16 : 150,781.31 = 73,438.92 : x
  2. Step 2: Convert to fraction form
    109,228.16/150,781.31 = 73,438.92/x
  3. Step 3: Cross multiply
    109,228.16x = 150,781.31 × 73,438.92
  4. Step 4: Simplify right side
    109,228.16x = 11,073,216,195.39
  5. Step 5: Solve for x
    x = 11,073,216,195.39/109,228.16
  6. Step 6: Final answer
    x = 101,376.94

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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.