Home / 154,442.20-231,749.70-65,680.60

Finding the Fourth Proportional to 154,442.20, 231,749.70 and 65,680.60

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Solution

The fourth proportional to 154,442.20, 231,749.70 and 65,680.60 is: 98,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,442.20 : 231,749.70 = 65,680.60 : x
  2. Step 2: Convert to fraction form
    154,442.20/231,749.70 = 65,680.60/x
  3. Step 3: Cross multiply
    154,442.20x = 231,749.70 × 65,680.60
  4. Step 4: Simplify right side
    154,442.20x = 15,221,459,345.82
  5. Step 5: Solve for x
    x = 15,221,459,345.82/154,442.20
  6. Step 6: Final answer
    x = 98,557.64

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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.