Home / 133,661.03-200,428.76-77,517.09

Finding the Fourth Proportional to 133,661.03, 200,428.76 and 77,517.09

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Solution

The fourth proportional to 133,661.03, 200,428.76 and 77,517.09 is: 116,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,661.03 : 200,428.76 = 77,517.09 : x
  2. Step 2: Convert to fraction form
    133,661.03/200,428.76 = 77,517.09/x
  3. Step 3: Cross multiply
    133,661.03x = 200,428.76 × 77,517.09
  4. Step 4: Simplify right side
    133,661.03x = 15,536,654,421.30
  5. Step 5: Solve for x
    x = 15,536,654,421.30/133,661.03
  6. Step 6: Final answer
    x = 116,239.23

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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.