Home / 113,533.11-156,668.18-65,777.94

Finding the Fourth Proportional to 113,533.11, 156,668.18 and 65,777.94

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Solution

The fourth proportional to 113,533.11, 156,668.18 and 65,777.94 is: 90,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,533.11 : 156,668.18 = 65,777.94 : x
  2. Step 2: Convert to fraction form
    113,533.11/156,668.18 = 65,777.94/x
  3. Step 3: Cross multiply
    113,533.11x = 156,668.18 × 65,777.94
  4. Step 4: Simplify right side
    113,533.11x = 10,305,309,815.06
  5. Step 5: Solve for x
    x = 10,305,309,815.06/113,533.11
  6. Step 6: Final answer
    x = 90,769.20

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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.