Home / 153,987.53-231,003.16-47,380.31

Finding the Fourth Proportional to 153,987.53, 231,003.16 and 47,380.31

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Solution

The fourth proportional to 153,987.53, 231,003.16 and 47,380.31 is: 71,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,987.53 : 231,003.16 = 47,380.31 : x
  2. Step 2: Convert to fraction form
    153,987.53/231,003.16 = 47,380.31/x
  3. Step 3: Cross multiply
    153,987.53x = 231,003.16 × 47,380.31
  4. Step 4: Simplify right side
    153,987.53x = 10,945,001,331.78
  5. Step 5: Solve for x
    x = 10,945,001,331.78/153,987.53
  6. Step 6: Final answer
    x = 71,077.19

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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.