Home / 101,188.11-139,639.79-55,866.18

Finding the Fourth Proportional to 101,188.11, 139,639.79 and 55,866.18

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Solution

The fourth proportional to 101,188.11, 139,639.79 and 55,866.18 is: 77,095.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,188.11 : 139,639.79 = 55,866.18 : x
  2. Step 2: Convert to fraction form
    101,188.11/139,639.79 = 55,866.18/x
  3. Step 3: Cross multiply
    101,188.11x = 139,639.79 × 55,866.18
  4. Step 4: Simplify right side
    101,188.11x = 7,801,141,224.37
  5. Step 5: Solve for x
    x = 7,801,141,224.37/101,188.11
  6. Step 6: Final answer
    x = 77,095.44

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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.