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Finding the Fourth Proportional to 101,162.66, 139,604.49 and 55,840.66

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Solution

The fourth proportional to 101,162.66, 139,604.49 and 55,840.66 is: 77,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,162.66 : 139,604.49 = 55,840.66 : x
  2. Step 2: Convert to fraction form
    101,162.66/139,604.49 = 55,840.66/x
  3. Step 3: Cross multiply
    101,162.66x = 139,604.49 × 55,840.66
  4. Step 4: Simplify right side
    101,162.66x = 7,795,606,022.94
  5. Step 5: Solve for x
    x = 7,795,606,022.94/101,162.66
  6. Step 6: Final answer
    x = 77,060.12

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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.