Home / 146,814.20-220,221.30-53,307.80

Finding the Fourth Proportional to 146,814.20, 220,221.30 and 53,307.80

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Solution

The fourth proportional to 146,814.20, 220,221.30 and 53,307.80 is: 79,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,814.20 : 220,221.30 = 53,307.80 : x
  2. Step 2: Convert to fraction form
    146,814.20/220,221.30 = 53,307.80/x
  3. Step 3: Cross multiply
    146,814.20x = 220,221.30 × 53,307.80
  4. Step 4: Simplify right side
    146,814.20x = 11,739,513,016.14
  5. Step 5: Solve for x
    x = 11,739,513,016.14/146,814.20
  6. Step 6: Final answer
    x = 79,961.70

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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.