Home / 146,451.04-219,720.40-76,379.68

Finding the Fourth Proportional to 146,451.04, 219,720.40 and 76,379.68

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Solution

The fourth proportional to 146,451.04, 219,720.40 and 76,379.68 is: 114,592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,451.04 : 219,720.40 = 76,379.68 : x
  2. Step 2: Convert to fraction form
    146,451.04/219,720.40 = 76,379.68/x
  3. Step 3: Cross multiply
    146,451.04x = 219,720.40 × 76,379.68
  4. Step 4: Simplify right side
    146,451.04x = 16,782,173,841.47
  5. Step 5: Solve for x
    x = 16,782,173,841.47/146,451.04
  6. Step 6: Final answer
    x = 114,592.38

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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.