Home / 197,157.81-296,354.10-130,120.69

Finding the Fourth Proportional to 197,157.81, 296,354.10 and 130,120.69

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Solution

The fourth proportional to 197,157.81, 296,354.10 and 130,120.69 is: 195,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,157.81 : 296,354.10 = 130,120.69 : x
  2. Step 2: Convert to fraction form
    197,157.81/296,354.10 = 130,120.69/x
  3. Step 3: Cross multiply
    197,157.81x = 296,354.10 × 130,120.69
  4. Step 4: Simplify right side
    197,157.81x = 38,561,799,235.44
  5. Step 5: Solve for x
    x = 38,561,799,235.44/197,157.81
  6. Step 6: Final answer
    x = 195,588.49

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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.