Home / 117,753.13-162,442.20-69,972.64

Finding the Fourth Proportional to 117,753.13, 162,442.20 and 69,972.64

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Solution

The fourth proportional to 117,753.13, 162,442.20 and 69,972.64 is: 96,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,753.13 : 162,442.20 = 69,972.64 : x
  2. Step 2: Convert to fraction form
    117,753.13/162,442.20 = 69,972.64/x
  3. Step 3: Cross multiply
    117,753.13x = 162,442.20 × 69,972.64
  4. Step 4: Simplify right side
    117,753.13x = 11,366,509,581.41
  5. Step 5: Solve for x
    x = 11,366,509,581.41/117,753.13
  6. Step 6: Final answer
    x = 96,528.30

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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.