Home / 133,515.40-200,208.30-74,288.20

Finding the Fourth Proportional to 133,515.40, 200,208.30 and 74,288.20

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Solution

The fourth proportional to 133,515.40, 200,208.30 and 74,288.20 is: 111,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,515.40 : 200,208.30 = 74,288.20 : x
  2. Step 2: Convert to fraction form
    133,515.40/200,208.30 = 74,288.20/x
  3. Step 3: Cross multiply
    133,515.40x = 200,208.30 × 74,288.20
  4. Step 4: Simplify right side
    133,515.40x = 14,873,114,232.06
  5. Step 5: Solve for x
    x = 14,873,114,232.06/133,515.40
  6. Step 6: Final answer
    x = 111,396.25

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1.5x scale

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.