Home / 115,179.14-172,792.20-65,281.52

Finding the Fourth Proportional to 115,179.14, 172,792.20 and 65,281.52

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Solution

The fourth proportional to 115,179.14, 172,792.20 and 65,281.52 is: 97,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,179.14 : 172,792.20 = 65,281.52 : x
  2. Step 2: Convert to fraction form
    115,179.14/172,792.20 = 65,281.52/x
  3. Step 3: Cross multiply
    115,179.14x = 172,792.20 × 65,281.52
  4. Step 4: Simplify right side
    115,179.14x = 11,280,137,460.14
  5. Step 5: Solve for x
    x = 11,280,137,460.14/115,179.14
  6. Step 6: Final answer
    x = 97,935.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.