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Finding the Fourth Proportional to 101,122.88, 139,552.26 and 55,801.40

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Solution

The fourth proportional to 101,122.88, 139,552.26 and 55,801.40 is: 77,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,122.88 : 139,552.26 = 55,801.40 : x
  2. Step 2: Convert to fraction form
    101,122.88/139,552.26 = 55,801.40/x
  3. Step 3: Cross multiply
    101,122.88x = 139,552.26 × 55,801.40
  4. Step 4: Simplify right side
    101,122.88x = 7,787,211,481.16
  5. Step 5: Solve for x
    x = 7,787,211,481.16/101,122.88
  6. Step 6: Final answer
    x = 77,007.41

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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.