Home / 100,776.53-151,187.27-30,661.31

Finding the Fourth Proportional to 100,776.53, 151,187.27 and 30,661.31

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Solution

The fourth proportional to 100,776.53, 151,187.27 and 30,661.31 is: 45,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,776.53 : 151,187.27 = 30,661.31 : x
  2. Step 2: Convert to fraction form
    100,776.53/151,187.27 = 30,661.31/x
  3. Step 3: Cross multiply
    100,776.53x = 151,187.27 × 30,661.31
  4. Step 4: Simplify right side
    100,776.53x = 4,635,599,753.52
  5. Step 5: Solve for x
    x = 4,635,599,753.52/100,776.53
  6. Step 6: Final answer
    x = 45,998.80

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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.