Home / 125,865.48-188,782-37,128.36

Finding the Fourth Proportional to 125,865.48, 188,782 and 37,128.36

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Solution

The fourth proportional to 125,865.48, 188,782 and 37,128.36 is: 55,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,865.48 : 188,782 = 37,128.36 : x
  2. Step 2: Convert to fraction form
    125,865.48/188,782 = 37,128.36/x
  3. Step 3: Cross multiply
    125,865.48x = 188,782 × 37,128.36
  4. Step 4: Simplify right side
    125,865.48x = 7,009,166,057.52
  5. Step 5: Solve for x
    x = 7,009,166,057.52/125,865.48
  6. Step 6: Final answer
    x = 55,687.76

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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.