Home / 117,132.35-161,640.68-63,416.93

Finding the Fourth Proportional to 117,132.35, 161,640.68 and 63,416.93

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Solution

The fourth proportional to 117,132.35, 161,640.68 and 63,416.93 is: 87,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,132.35 : 161,640.68 = 63,416.93 : x
  2. Step 2: Convert to fraction form
    117,132.35/161,640.68 = 63,416.93/x
  3. Step 3: Cross multiply
    117,132.35x = 161,640.68 × 63,416.93
  4. Step 4: Simplify right side
    117,132.35x = 10,250,755,688.71
  5. Step 5: Solve for x
    x = 10,250,755,688.71/117,132.35
  6. Step 6: Final answer
    x = 87,514.30

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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.