Home / 96,694.20-145,041.30-30,139.70

Finding the Fourth Proportional to 96,694.20, 145,041.30 and 30,139.70

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Solution

The fourth proportional to 96,694.20, 145,041.30 and 30,139.70 is: 45,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,694.20 : 145,041.30 = 30,139.70 : x
  2. Step 2: Convert to fraction form
    96,694.20/145,041.30 = 30,139.70/x
  3. Step 3: Cross multiply
    96,694.20x = 145,041.30 × 30,139.70
  4. Step 4: Simplify right side
    96,694.20x = 4,371,500,544.40
  5. Step 5: Solve for x
    x = 4,371,500,544.40/96,694.20
  6. Step 6: Final answer
    x = 45,209.54

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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.