Home / 133,719.90-200,515.05-74,492.70

Finding the Fourth Proportional to 133,719.90, 200,515.05 and 74,492.70

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Solution

The fourth proportional to 133,719.90, 200,515.05 and 74,492.70 is: 111,702.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,719.90 : 200,515.05 = 74,492.70 : x
  2. Step 2: Convert to fraction form
    133,719.90/200,515.05 = 74,492.70/x
  3. Step 3: Cross multiply
    133,719.90x = 200,515.05 × 74,492.70
  4. Step 4: Simplify right side
    133,719.90x = 14,936,907,465.14
  5. Step 5: Solve for x
    x = 14,936,907,465.14/133,719.90
  6. Step 6: Final answer
    x = 111,702.95

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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.