Home / 133,015.28-183,564.98-72,589.82

Finding the Fourth Proportional to 133,015.28, 183,564.98 and 72,589.82

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Solution

The fourth proportional to 133,015.28, 183,564.98 and 72,589.82 is: 100,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,015.28 : 183,564.98 = 72,589.82 : x
  2. Step 2: Convert to fraction form
    133,015.28/183,564.98 = 72,589.82/x
  3. Step 3: Cross multiply
    133,015.28x = 183,564.98 × 72,589.82
  4. Step 4: Simplify right side
    133,015.28x = 13,324,947,847.94
  5. Step 5: Solve for x
    x = 13,324,947,847.94/133,015.28
  6. Step 6: Final answer
    x = 100,176.07

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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.