Home / 157,090.72-235,546.86-107,231.20

Finding the Fourth Proportional to 157,090.72, 235,546.86 and 107,231.20

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Solution

The fourth proportional to 157,090.72, 235,546.86 and 107,231.20 is: 160,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,090.72 : 235,546.86 = 107,231.20 : x
  2. Step 2: Convert to fraction form
    157,090.72/235,546.86 = 107,231.20/x
  3. Step 3: Cross multiply
    157,090.72x = 235,546.86 × 107,231.20
  4. Step 4: Simplify right side
    157,090.72x = 25,257,972,454.03
  5. Step 5: Solve for x
    x = 25,257,972,454.03/157,090.72
  6. Step 6: Final answer
    x = 160,785.90

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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.