Home / 117,467.15-162,104.78-63,752.21

Finding the Fourth Proportional to 117,467.15, 162,104.78 and 63,752.21

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Solution

The fourth proportional to 117,467.15, 162,104.78 and 63,752.21 is: 87,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,467.15 : 162,104.78 = 63,752.21 : x
  2. Step 2: Convert to fraction form
    117,467.15/162,104.78 = 63,752.21/x
  3. Step 3: Cross multiply
    117,467.15x = 162,104.78 × 63,752.21
  4. Step 4: Simplify right side
    117,467.15x = 10,334,537,325.42
  5. Step 5: Solve for x
    x = 10,334,537,325.42/117,467.15
  6. Step 6: Final answer
    x = 87,978.10

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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.