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Finding the Fourth Proportional to 109,804.92, 151,472.34 and 66,797.57

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Solution

The fourth proportional to 109,804.92, 151,472.34 and 66,797.57 is: 92,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,804.92 : 151,472.34 = 66,797.57 : x
  2. Step 2: Convert to fraction form
    109,804.92/151,472.34 = 66,797.57/x
  3. Step 3: Cross multiply
    109,804.92x = 151,472.34 × 66,797.57
  4. Step 4: Simplify right side
    109,804.92x = 10,117,983,476.85
  5. Step 5: Solve for x
    x = 10,117,983,476.85/109,804.92
  6. Step 6: Final answer
    x = 92,145.08

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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.