Home / 133,743.18-200,196.39-86,294.79

Finding the Fourth Proportional to 133,743.18, 200,196.39 and 86,294.79

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Solution

The fourth proportional to 133,743.18, 200,196.39 and 86,294.79 is: 129,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,743.18 : 200,196.39 = 86,294.79 : x
  2. Step 2: Convert to fraction form
    133,743.18/200,196.39 = 86,294.79/x
  3. Step 3: Cross multiply
    133,743.18x = 200,196.39 × 86,294.79
  4. Step 4: Simplify right side
    133,743.18x = 17,275,905,433.81
  5. Step 5: Solve for x
    x = 17,275,905,433.81/133,743.18
  6. Step 6: Final answer
    x = 129,172.23

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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.