Home / 117,496.38-162,145.21-63,781.43

Finding the Fourth Proportional to 117,496.38, 162,145.21 and 63,781.43

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Solution

The fourth proportional to 117,496.38, 162,145.21 and 63,781.43 is: 88,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,496.38 : 162,145.21 = 63,781.43 : x
  2. Step 2: Convert to fraction form
    117,496.38/162,145.21 = 63,781.43/x
  3. Step 3: Cross multiply
    117,496.38x = 162,145.21 × 63,781.43
  4. Step 4: Simplify right side
    117,496.38x = 10,341,853,361.45
  5. Step 5: Solve for x
    x = 10,341,853,361.45/117,496.38
  6. Step 6: Final answer
    x = 88,018.49

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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.