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Finding the Fourth Proportional to 101,168.36, 139,620.06 and 55,855.07

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Solution

The fourth proportional to 101,168.36, 139,620.06 and 55,855.07 is: 77,084.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,168.36 : 139,620.06 = 55,855.07 : x
  2. Step 2: Convert to fraction form
    101,168.36/139,620.06 = 55,855.07/x
  3. Step 3: Cross multiply
    101,168.36x = 139,620.06 × 55,855.07
  4. Step 4: Simplify right side
    101,168.36x = 7,798,488,224.70
  5. Step 5: Solve for x
    x = 7,798,488,224.70/101,168.36
  6. Step 6: Final answer
    x = 77,084.26

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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.