Home / 100,708.72-151,053.24-30,588.64

Finding the Fourth Proportional to 100,708.72, 151,053.24 and 30,588.64

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Solution

The fourth proportional to 100,708.72, 151,053.24 and 30,588.64 is: 45,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,708.72 : 151,053.24 = 30,588.64 : x
  2. Step 2: Convert to fraction form
    100,708.72/151,053.24 = 30,588.64/x
  3. Step 3: Cross multiply
    100,708.72x = 151,053.24 × 30,588.64
  4. Step 4: Simplify right side
    100,708.72x = 4,620,513,179.19
  5. Step 5: Solve for x
    x = 4,620,513,179.19/100,708.72
  6. Step 6: Final answer
    x = 45,879.97

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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.