Home / 125,720.78-188,581.16-36,974.28

Finding the Fourth Proportional to 125,720.78, 188,581.16 and 36,974.28

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Solution

The fourth proportional to 125,720.78, 188,581.16 and 36,974.28 is: 55,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,720.78 : 188,581.16 = 36,974.28 : x
  2. Step 2: Convert to fraction form
    125,720.78/188,581.16 = 36,974.28/x
  3. Step 3: Cross multiply
    125,720.78x = 188,581.16 × 36,974.28
  4. Step 4: Simplify right side
    125,720.78x = 6,972,652,427.69
  5. Step 5: Solve for x
    x = 6,972,652,427.69/125,720.78
  6. Step 6: Final answer
    x = 55,461.42

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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.