Home / 129,748.40-194,622.60-73,761.20

Finding the Fourth Proportional to 129,748.40, 194,622.60 and 73,761.20

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Solution

The fourth proportional to 129,748.40, 194,622.60 and 73,761.20 is: 110,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.40 : 194,622.60 = 73,761.20 : x
  2. Step 2: Convert to fraction form
    129,748.40/194,622.60 = 73,761.20/x
  3. Step 3: Cross multiply
    129,748.40x = 194,622.60 × 73,761.20
  4. Step 4: Simplify right side
    129,748.40x = 14,355,596,523.12
  5. Step 5: Solve for x
    x = 14,355,596,523.12/129,748.40
  6. Step 6: Final answer
    x = 110,641.80

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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.