Home / 109,556.80-151,189.14-69,287.92

Finding the Fourth Proportional to 109,556.80, 151,189.14 and 69,287.92

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Solution

The fourth proportional to 109,556.80, 151,189.14 and 69,287.92 is: 95,617.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,556.80 : 151,189.14 = 69,287.92 : x
  2. Step 2: Convert to fraction form
    109,556.80/151,189.14 = 69,287.92/x
  3. Step 3: Cross multiply
    109,556.80x = 151,189.14 × 69,287.92
  4. Step 4: Simplify right side
    109,556.80x = 10,475,581,037.19
  5. Step 5: Solve for x
    x = 10,475,581,037.19/109,556.80
  6. Step 6: Final answer
    x = 95,617.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.