Home / 100,882.08-151,322.64-30,761.16

Finding the Fourth Proportional to 100,882.08, 151,322.64 and 30,761.16

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Solution

The fourth proportional to 100,882.08, 151,322.64 and 30,761.16 is: 46,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,882.08 : 151,322.64 = 30,761.16 : x
  2. Step 2: Convert to fraction form
    100,882.08/151,322.64 = 30,761.16/x
  3. Step 3: Cross multiply
    100,882.08x = 151,322.64 × 30,761.16
  4. Step 4: Simplify right side
    100,882.08x = 4,654,859,940.66
  5. Step 5: Solve for x
    x = 4,654,859,940.66/100,882.08
  6. Step 6: Final answer
    x = 46,141.59

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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.