Home / 117,991.08-162,822.45-64,276.54

Finding the Fourth Proportional to 117,991.08, 162,822.45 and 64,276.54

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Solution

The fourth proportional to 117,991.08, 162,822.45 and 64,276.54 is: 88,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,991.08 : 162,822.45 = 64,276.54 : x
  2. Step 2: Convert to fraction form
    117,991.08/162,822.45 = 64,276.54/x
  3. Step 3: Cross multiply
    117,991.08x = 162,822.45 × 64,276.54
  4. Step 4: Simplify right side
    117,991.08x = 10,465,663,554.30
  5. Step 5: Solve for x
    x = 10,465,663,554.30/117,991.08
  6. Step 6: Final answer
    x = 88,698.77

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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.