Home / 100,923.77-139,274.16-55,600.70

Finding the Fourth Proportional to 100,923.77, 139,274.16 and 55,600.70

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Solution

The fourth proportional to 100,923.77, 139,274.16 and 55,600.70 is: 76,728.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.77 : 139,274.16 = 55,600.70 : x
  2. Step 2: Convert to fraction form
    100,923.77/139,274.16 = 55,600.70/x
  3. Step 3: Cross multiply
    100,923.77x = 139,274.16 × 55,600.70
  4. Step 4: Simplify right side
    100,923.77x = 7,743,741,214.54
  5. Step 5: Solve for x
    x = 7,743,741,214.54/100,923.77
  6. Step 6: Final answer
    x = 76,728.61

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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.