Home / 197,985.28-297,066.22-91,311.88

Finding the Fourth Proportional to 197,985.28, 297,066.22 and 91,311.88

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Solution

The fourth proportional to 197,985.28, 297,066.22 and 91,311.88 is: 137,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,985.28 : 297,066.22 = 91,311.88 : x
  2. Step 2: Convert to fraction form
    197,985.28/297,066.22 = 91,311.88/x
  3. Step 3: Cross multiply
    197,985.28x = 297,066.22 × 91,311.88
  4. Step 4: Simplify right side
    197,985.28x = 27,125,675,032.69
  5. Step 5: Solve for x
    x = 27,125,675,032.69/197,985.28
  6. Step 6: Final answer
    x = 137,008.54

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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.