Home / 109,427.40-164,270.70-108,649.80

Finding the Fourth Proportional to 109,427.40, 164,270.70 and 108,649.80

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Solution

The fourth proportional to 109,427.40, 164,270.70 and 108,649.80 is: 163,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,427.40 : 164,270.70 = 108,649.80 : x
  2. Step 2: Convert to fraction form
    109,427.40/164,270.70 = 108,649.80/x
  3. Step 3: Cross multiply
    109,427.40x = 164,270.70 × 108,649.80
  4. Step 4: Simplify right side
    109,427.40x = 17,847,978,700.86
  5. Step 5: Solve for x
    x = 17,847,978,700.86/109,427.40
  6. Step 6: Final answer
    x = 163,103.38

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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.