Home / 133,719.40-200,514.30-74,492.20

Finding the Fourth Proportional to 133,719.40, 200,514.30 and 74,492.20

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Solution

The fourth proportional to 133,719.40, 200,514.30 and 74,492.20 is: 111,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,719.40 : 200,514.30 = 74,492.20 : x
  2. Step 2: Convert to fraction form
    133,719.40/200,514.30 = 74,492.20/x
  3. Step 3: Cross multiply
    133,719.40x = 200,514.30 × 74,492.20
  4. Step 4: Simplify right side
    133,719.40x = 14,936,751,338.46
  5. Step 5: Solve for x
    x = 14,936,751,338.46/133,719.40
  6. Step 6: Final answer
    x = 111,702.20

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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.