Home / 117,895.20-176,439.60-71,181.60

Finding the Fourth Proportional to 117,895.20, 176,439.60 and 71,181.60

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Solution

The fourth proportional to 117,895.20, 176,439.60 and 71,181.60 is: 106,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,895.20 : 176,439.60 = 71,181.60 : x
  2. Step 2: Convert to fraction form
    117,895.20/176,439.60 = 71,181.60/x
  3. Step 3: Cross multiply
    117,895.20x = 176,439.60 × 71,181.60
  4. Step 4: Simplify right side
    117,895.20x = 12,559,253,031.36
  5. Step 5: Solve for x
    x = 12,559,253,031.36/117,895.20
  6. Step 6: Final answer
    x = 106,528.96

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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.