Home / 101,288.64-139,766.38-55,963.92

Finding the Fourth Proportional to 101,288.64, 139,766.38 and 55,963.92

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Solution

The fourth proportional to 101,288.64, 139,766.38 and 55,963.92 is: 77,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,288.64 : 139,766.38 = 55,963.92 : x
  2. Step 2: Convert to fraction form
    101,288.64/139,766.38 = 55,963.92/x
  3. Step 3: Cross multiply
    101,288.64x = 139,766.38 × 55,963.92
  4. Step 4: Simplify right side
    101,288.64x = 7,821,874,509.01
  5. Step 5: Solve for x
    x = 7,821,874,509.01/101,288.64
  6. Step 6: Final answer
    x = 77,223.61

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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.