Home / 230,108.40-345,021.66-89,703

Finding the Fourth Proportional to 230,108.40, 345,021.66 and 89,703

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Solution

The fourth proportional to 230,108.40, 345,021.66 and 89,703 is: 134,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,108.40 : 345,021.66 = 89,703 : x
  2. Step 2: Convert to fraction form
    230,108.40/345,021.66 = 89,703/x
  3. Step 3: Cross multiply
    230,108.40x = 345,021.66 × 89,703
  4. Step 4: Simplify right side
    230,108.40x = 30,949,477,966.98
  5. Step 5: Solve for x
    x = 30,949,477,966.98/230,108.40
  6. Step 6: Final answer
    x = 134,499.56

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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.