Home / 146,320.20-219,329.10-79,619.40

Finding the Fourth Proportional to 146,320.20, 219,329.10 and 79,619.40

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Solution

The fourth proportional to 146,320.20, 219,329.10 and 79,619.40 is: 119,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,320.20 : 219,329.10 = 79,619.40 : x
  2. Step 2: Convert to fraction form
    146,320.20/219,329.10 = 79,619.40/x
  3. Step 3: Cross multiply
    146,320.20x = 219,329.10 × 79,619.40
  4. Step 4: Simplify right side
    146,320.20x = 17,462,851,344.54
  5. Step 5: Solve for x
    x = 17,462,851,344.54/146,320.20
  6. Step 6: Final answer
    x = 119,346.83

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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.