Home / 154,530.20-231,881.70-65,768.60

Finding the Fourth Proportional to 154,530.20, 231,881.70 and 65,768.60

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Solution

The fourth proportional to 154,530.20, 231,881.70 and 65,768.60 is: 98,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530.20 : 231,881.70 = 65,768.60 : x
  2. Step 2: Convert to fraction form
    154,530.20/231,881.70 = 65,768.60/x
  3. Step 3: Cross multiply
    154,530.20x = 231,881.70 × 65,768.60
  4. Step 4: Simplify right side
    154,530.20x = 15,250,534,774.62
  5. Step 5: Solve for x
    x = 15,250,534,774.62/154,530.20
  6. Step 6: Final answer
    x = 98,689.67

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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.