Home / 100,244.02-138,336.74-54,923.72

Finding the Fourth Proportional to 100,244.02, 138,336.74 and 54,923.72

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Solution

The fourth proportional to 100,244.02, 138,336.74 and 54,923.72 is: 75,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.02 : 138,336.74 = 54,923.72 : x
  2. Step 2: Convert to fraction form
    100,244.02/138,336.74 = 54,923.72/x
  3. Step 3: Cross multiply
    100,244.02x = 138,336.74 × 54,923.72
  4. Step 4: Simplify right side
    100,244.02x = 7,597,967,407.17
  5. Step 5: Solve for x
    x = 7,597,967,407.17/100,244.02
  6. Step 6: Final answer
    x = 75,794.72

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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.