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Finding the Fourth Proportional to 101,293.92, 139,785.08 and 55,975.05

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Solution

The fourth proportional to 101,293.92, 139,785.08 and 55,975.05 is: 77,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,293.92 : 139,785.08 = 55,975.05 : x
  2. Step 2: Convert to fraction form
    101,293.92/139,785.08 = 55,975.05/x
  3. Step 3: Cross multiply
    101,293.92x = 139,785.08 × 55,975.05
  4. Step 4: Simplify right side
    101,293.92x = 7,824,476,562.38
  5. Step 5: Solve for x
    x = 7,824,476,562.38/101,293.92
  6. Step 6: Final answer
    x = 77,245.27

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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.