Home / 109,348.24-150,911.72-66,934.80

Finding the Fourth Proportional to 109,348.24, 150,911.72 and 66,934.80

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Solution

The fourth proportional to 109,348.24, 150,911.72 and 66,934.80 is: 92,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,348.24 : 150,911.72 = 66,934.80 : x
  2. Step 2: Convert to fraction form
    109,348.24/150,911.72 = 66,934.80/x
  3. Step 3: Cross multiply
    109,348.24x = 150,911.72 × 66,934.80
  4. Step 4: Simplify right side
    109,348.24x = 10,101,245,795.86
  5. Step 5: Solve for x
    x = 10,101,245,795.86/109,348.24
  6. Step 6: Final answer
    x = 92,376.85

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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.