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Finding the Fourth Proportional to 101,203.22, 139,659.76 and 55,884.06

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Solution

The fourth proportional to 101,203.22, 139,659.76 and 55,884.06 is: 77,119.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,203.22 : 139,659.76 = 55,884.06 : x
  2. Step 2: Convert to fraction form
    101,203.22/139,659.76 = 55,884.06/x
  3. Step 3: Cross multiply
    101,203.22x = 139,659.76 × 55,884.06
  4. Step 4: Simplify right side
    101,203.22x = 7,804,754,477.28
  5. Step 5: Solve for x
    x = 7,804,754,477.28/101,203.22
  6. Step 6: Final answer
    x = 77,119.62

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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.