Home / 117,137.18-161,649.60-63,422.84

Finding the Fourth Proportional to 117,137.18, 161,649.60 and 63,422.84

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Solution

The fourth proportional to 117,137.18, 161,649.60 and 63,422.84 is: 87,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,137.18 : 161,649.60 = 63,422.84 : x
  2. Step 2: Convert to fraction form
    117,137.18/161,649.60 = 63,422.84/x
  3. Step 3: Cross multiply
    117,137.18x = 161,649.60 × 63,422.84
  4. Step 4: Simplify right side
    117,137.18x = 10,252,276,716.86
  5. Step 5: Solve for x
    x = 10,252,276,716.86/117,137.18
  6. Step 6: Final answer
    x = 87,523.68

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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.