Home / 130,039.28-195,107.51-51,208.46

Finding the Fourth Proportional to 130,039.28, 195,107.51 and 51,208.46

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Solution

The fourth proportional to 130,039.28, 195,107.51 and 51,208.46 is: 76,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,039.28 : 195,107.51 = 51,208.46 : x
  2. Step 2: Convert to fraction form
    130,039.28/195,107.51 = 51,208.46/x
  3. Step 3: Cross multiply
    130,039.28x = 195,107.51 × 51,208.46
  4. Step 4: Simplify right side
    130,039.28x = 9,991,155,121.53
  5. Step 5: Solve for x
    x = 9,991,155,121.53/130,039.28
  6. Step 6: Final answer
    x = 76,831.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.