Home / 101,130.20-151,572.30-71,556.56

Finding the Fourth Proportional to 101,130.20, 151,572.30 and 71,556.56

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Solution

The fourth proportional to 101,130.20, 151,572.30 and 71,556.56 is: 107,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,130.20 : 151,572.30 = 71,556.56 : x
  2. Step 2: Convert to fraction form
    101,130.20/151,572.30 = 71,556.56/x
  3. Step 3: Cross multiply
    101,130.20x = 151,572.30 × 71,556.56
  4. Step 4: Simplify right side
    101,130.20x = 10,845,992,379.29
  5. Step 5: Solve for x
    x = 10,845,992,379.29/101,130.20
  6. Step 6: Final answer
    x = 107,247.81

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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.