Home / 125,401.28-188,108.07-50,511.31

Finding the Fourth Proportional to 125,401.28, 188,108.07 and 50,511.31

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Solution

The fourth proportional to 125,401.28, 188,108.07 and 50,511.31 is: 75,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,401.28 : 188,108.07 = 50,511.31 : x
  2. Step 2: Convert to fraction form
    125,401.28/188,108.07 = 50,511.31/x
  3. Step 3: Cross multiply
    125,401.28x = 188,108.07 × 50,511.31
  4. Step 4: Simplify right side
    125,401.28x = 9,501,583,844.17
  5. Step 5: Solve for x
    x = 9,501,583,844.17/125,401.28
  6. Step 6: Final answer
    x = 75,769.44

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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.