Home / 125,505.15-188,131.36-55,372.11

Finding the Fourth Proportional to 125,505.15, 188,131.36 and 55,372.11

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Solution

The fourth proportional to 125,505.15, 188,131.36 and 55,372.11 is: 83,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505.15 : 188,131.36 = 55,372.11 : x
  2. Step 2: Convert to fraction form
    125,505.15/188,131.36 = 55,372.11/x
  3. Step 3: Cross multiply
    125,505.15x = 188,131.36 × 55,372.11
  4. Step 4: Simplify right side
    125,505.15x = 10,417,230,360.37
  5. Step 5: Solve for x
    x = 10,417,230,360.37/125,505.15
  6. Step 6: Final answer
    x = 83,002.41

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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.