Home / 133,288.80-183,942.96-72,858.24

Finding the Fourth Proportional to 133,288.80, 183,942.96 and 72,858.24

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Solution

The fourth proportional to 133,288.80, 183,942.96 and 72,858.24 is: 100,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,288.80 : 183,942.96 = 72,858.24 : x
  2. Step 2: Convert to fraction form
    133,288.80/183,942.96 = 72,858.24/x
  3. Step 3: Cross multiply
    133,288.80x = 183,942.96 × 72,858.24
  4. Step 4: Simplify right side
    133,288.80x = 13,401,760,325.99
  5. Step 5: Solve for x
    x = 13,401,760,325.99/133,288.80
  6. Step 6: Final answer
    x = 100,546.79

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1.5x scale

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.