Home / 146,823.20-220,321.20-53,338.40

Finding the Fourth Proportional to 146,823.20, 220,321.20 and 53,338.40

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Solution

The fourth proportional to 146,823.20, 220,321.20 and 53,338.40 is: 80,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,823.20 : 220,321.20 = 53,338.40 : x
  2. Step 2: Convert to fraction form
    146,823.20/220,321.20 = 53,338.40/x
  3. Step 3: Cross multiply
    146,823.20x = 220,321.20 × 53,338.40
  4. Step 4: Simplify right side
    146,823.20x = 11,751,580,294.08
  5. Step 5: Solve for x
    x = 11,751,580,294.08/146,823.20
  6. Step 6: Final answer
    x = 80,038.99

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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.