Home / 129,750.40-194,625.60-107,588.80

Finding the Fourth Proportional to 129,750.40, 194,625.60 and 107,588.80

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Solution

The fourth proportional to 129,750.40, 194,625.60 and 107,588.80 is: 161,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,750.40 : 194,625.60 = 107,588.80 : x
  2. Step 2: Convert to fraction form
    129,750.40/194,625.60 = 107,588.80/x
  3. Step 3: Cross multiply
    129,750.40x = 194,625.60 × 107,588.80
  4. Step 4: Simplify right side
    129,750.40x = 20,939,534,753.28
  5. Step 5: Solve for x
    x = 20,939,534,753.28/129,750.40
  6. Step 6: Final answer
    x = 161,383.20

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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.