Home / 150,791.28-208,117.56-87,165.96

Finding the Fourth Proportional to 150,791.28, 208,117.56 and 87,165.96

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Solution

The fourth proportional to 150,791.28, 208,117.56 and 87,165.96 is: 120,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,791.28 : 208,117.56 = 87,165.96 : x
  2. Step 2: Convert to fraction form
    150,791.28/208,117.56 = 87,165.96/x
  3. Step 3: Cross multiply
    150,791.28x = 208,117.56 × 87,165.96
  4. Step 4: Simplify right side
    150,791.28x = 18,140,766,910.26
  5. Step 5: Solve for x
    x = 18,140,766,910.26/150,791.28
  6. Step 6: Final answer
    x = 120,303.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.