Home / 231,742.20-347,645.70-98,621.40

Finding the Fourth Proportional to 231,742.20, 347,645.70 and 98,621.40

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Solution

The fourth proportional to 231,742.20, 347,645.70 and 98,621.40 is: 147,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,742.20 : 347,645.70 = 98,621.40 : x
  2. Step 2: Convert to fraction form
    231,742.20/347,645.70 = 98,621.40/x
  3. Step 3: Cross multiply
    231,742.20x = 347,645.70 × 98,621.40
  4. Step 4: Simplify right side
    231,742.20x = 34,285,305,637.98
  5. Step 5: Solve for x
    x = 34,285,305,637.98/231,742.20
  6. Step 6: Final answer
    x = 147,945.89

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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.