Home / 101,153.24-139,591.20-55,831.16

Finding the Fourth Proportional to 101,153.24, 139,591.20 and 55,831.16

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Solution

The fourth proportional to 101,153.24, 139,591.20 and 55,831.16 is: 77,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,153.24 : 139,591.20 = 55,831.16 : x
  2. Step 2: Convert to fraction form
    101,153.24/139,591.20 = 55,831.16/x
  3. Step 3: Cross multiply
    101,153.24x = 139,591.20 × 55,831.16
  4. Step 4: Simplify right side
    101,153.24x = 7,793,538,621.79
  5. Step 5: Solve for x
    x = 7,793,538,621.79/101,153.24
  6. Step 6: Final answer
    x = 77,046.85

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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.