Home / 125,505.90-188,132.49-55,372.86

Finding the Fourth Proportional to 125,505.90, 188,132.49 and 55,372.86

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Solution

The fourth proportional to 125,505.90, 188,132.49 and 55,372.86 is: 83,003.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505.90 : 188,132.49 = 55,372.86 : x
  2. Step 2: Convert to fraction form
    125,505.90/188,132.49 = 55,372.86/x
  3. Step 3: Cross multiply
    125,505.90x = 188,132.49 × 55,372.86
  4. Step 4: Simplify right side
    125,505.90x = 10,417,434,030.22
  5. Step 5: Solve for x
    x = 10,417,434,030.22/125,505.90
  6. Step 6: Final answer
    x = 83,003.54

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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.