Home / 146,216.60-219,215.55-79,731.80

Finding the Fourth Proportional to 146,216.60, 219,215.55 and 79,731.80

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Solution

The fourth proportional to 146,216.60, 219,215.55 and 79,731.80 is: 119,538.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,216.60 : 219,215.55 = 79,731.80 : x
  2. Step 2: Convert to fraction form
    146,216.60/219,215.55 = 79,731.80/x
  3. Step 3: Cross multiply
    146,216.60x = 219,215.55 × 79,731.80
  4. Step 4: Simplify right side
    146,216.60x = 17,478,450,389.49
  5. Step 5: Solve for x
    x = 17,478,450,389.49/146,216.60
  6. Step 6: Final answer
    x = 119,538.07

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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.