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Finding the Fourth Proportional to 101,165.36, 139,615.92 and 55,852.07

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Solution

The fourth proportional to 101,165.36, 139,615.92 and 55,852.07 is: 77,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,165.36 : 139,615.92 = 55,852.07 : x
  2. Step 2: Convert to fraction form
    101,165.36/139,615.92 = 55,852.07/x
  3. Step 3: Cross multiply
    101,165.36x = 139,615.92 × 55,852.07
  4. Step 4: Simplify right side
    101,165.36x = 7,797,837,438.87
  5. Step 5: Solve for x
    x = 7,797,837,438.87/101,165.36
  6. Step 6: Final answer
    x = 77,080.12

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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.