Home / 129,819.36-194,729.04-46,711.20

Finding the Fourth Proportional to 129,819.36, 194,729.04 and 46,711.20

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Solution

The fourth proportional to 129,819.36, 194,729.04 and 46,711.20 is: 70,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,819.36 : 194,729.04 = 46,711.20 : x
  2. Step 2: Convert to fraction form
    129,819.36/194,729.04 = 46,711.20/x
  3. Step 3: Cross multiply
    129,819.36x = 194,729.04 × 46,711.20
  4. Step 4: Simplify right side
    129,819.36x = 9,096,027,133.25
  5. Step 5: Solve for x
    x = 9,096,027,133.25/129,819.36
  6. Step 6: Final answer
    x = 70,066.80

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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.