Home / 101,155.83-151,615.58-76,115.38

Finding the Fourth Proportional to 101,155.83, 151,615.58 and 76,115.38

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Solution

The fourth proportional to 101,155.83, 151,615.58 and 76,115.38 is: 114,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,155.83 : 151,615.58 = 76,115.38 : x
  2. Step 2: Convert to fraction form
    101,155.83/151,615.58 = 76,115.38/x
  3. Step 3: Cross multiply
    101,155.83x = 151,615.58 × 76,115.38
  4. Step 4: Simplify right side
    101,155.83x = 11,540,277,485.62
  5. Step 5: Solve for x
    x = 11,540,277,485.62/101,155.83
  6. Step 6: Final answer
    x = 114,084.16

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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.