Home / 117,132.10-161,640.34-63,416.68

Finding the Fourth Proportional to 117,132.10, 161,640.34 and 63,416.68

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Solution

The fourth proportional to 117,132.10, 161,640.34 and 63,416.68 is: 87,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,132.10 : 161,640.34 = 63,416.68 : x
  2. Step 2: Convert to fraction form
    117,132.10/161,640.34 = 63,416.68/x
  3. Step 3: Cross multiply
    117,132.10x = 161,640.34 × 63,416.68
  4. Step 4: Simplify right side
    117,132.10x = 10,250,693,716.87
  5. Step 5: Solve for x
    x = 10,250,693,716.87/117,132.10
  6. Step 6: Final answer
    x = 87,513.96

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1.5x scale

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.