Home / 136,663.20-204,905.70-122,666.40

Finding the Fourth Proportional to 136,663.20, 204,905.70 and 122,666.40

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Solution

The fourth proportional to 136,663.20, 204,905.70 and 122,666.40 is: 183,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,663.20 : 204,905.70 = 122,666.40 : x
  2. Step 2: Convert to fraction form
    136,663.20/204,905.70 = 122,666.40/x
  3. Step 3: Cross multiply
    136,663.20x = 204,905.70 × 122,666.40
  4. Step 4: Simplify right side
    136,663.20x = 25,135,044,558.48
  5. Step 5: Solve for x
    x = 25,135,044,558.48/136,663.20
  6. Step 6: Final answer
    x = 183,919.63

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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.