Home / 133,729.40-200,529.30-74,502.20

Finding the Fourth Proportional to 133,729.40, 200,529.30 and 74,502.20

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Solution

The fourth proportional to 133,729.40, 200,529.30 and 74,502.20 is: 111,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,729.40 : 200,529.30 = 74,502.20 : x
  2. Step 2: Convert to fraction form
    133,729.40/200,529.30 = 74,502.20/x
  3. Step 3: Cross multiply
    133,729.40x = 200,529.30 × 74,502.20
  4. Step 4: Simplify right side
    133,729.40x = 14,939,874,014.46
  5. Step 5: Solve for x
    x = 14,939,874,014.46/133,729.40
  6. Step 6: Final answer
    x = 111,717.20

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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.