Home / 133,729.90-200,530.05-74,502.70

Finding the Fourth Proportional to 133,729.90, 200,530.05 and 74,502.70

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Solution

The fourth proportional to 133,729.90, 200,530.05 and 74,502.70 is: 111,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,729.90 : 200,530.05 = 74,502.70 : x
  2. Step 2: Convert to fraction form
    133,729.90/200,530.05 = 74,502.70/x
  3. Step 3: Cross multiply
    133,729.90x = 200,530.05 × 74,502.70
  4. Step 4: Simplify right side
    133,729.90x = 14,940,030,156.14
  5. Step 5: Solve for x
    x = 14,940,030,156.14/133,729.90
  6. Step 6: Final answer
    x = 111,717.95

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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.