Home / 106,631.22-147,167.62-65,819.16

Finding the Fourth Proportional to 106,631.22, 147,167.62 and 65,819.16

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Solution

The fourth proportional to 106,631.22, 147,167.62 and 65,819.16 is: 90,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,631.22 : 147,167.62 = 65,819.16 : x
  2. Step 2: Convert to fraction form
    106,631.22/147,167.62 = 65,819.16/x
  3. Step 3: Cross multiply
    106,631.22x = 147,167.62 × 65,819.16
  4. Step 4: Simplify right side
    106,631.22x = 9,686,449,127.60
  5. Step 5: Solve for x
    x = 9,686,449,127.60/106,631.22
  6. Step 6: Final answer
    x = 90,840.65

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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.