Home / 100,839.06-151,290.36-47,528.88

Finding the Fourth Proportional to 100,839.06, 151,290.36 and 47,528.88

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Solution

The fourth proportional to 100,839.06, 151,290.36 and 47,528.88 is: 71,308.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,839.06 : 151,290.36 = 47,528.88 : x
  2. Step 2: Convert to fraction form
    100,839.06/151,290.36 = 47,528.88/x
  3. Step 3: Cross multiply
    100,839.06x = 151,290.36 × 47,528.88
  4. Step 4: Simplify right side
    100,839.06x = 7,190,661,365.60
  5. Step 5: Solve for x
    x = 7,190,661,365.60/100,839.06
  6. Step 6: Final answer
    x = 71,308.29

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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.