Home / 133,176.45-183,697.98-81,469.40

Finding the Fourth Proportional to 133,176.45, 183,697.98 and 81,469.40

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Solution

The fourth proportional to 133,176.45, 183,697.98 and 81,469.40 is: 112,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,176.45 : 183,697.98 = 81,469.40 : x
  2. Step 2: Convert to fraction form
    133,176.45/183,697.98 = 81,469.40/x
  3. Step 3: Cross multiply
    133,176.45x = 183,697.98 × 81,469.40
  4. Step 4: Simplify right side
    133,176.45x = 14,965,762,987.81
  5. Step 5: Solve for x
    x = 14,965,762,987.81/133,176.45
  6. Step 6: Final answer
    x = 112,375.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.