Home / 119,221.20-164,539.56-71,500.80

Finding the Fourth Proportional to 119,221.20, 164,539.56 and 71,500.80

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Solution

The fourth proportional to 119,221.20, 164,539.56 and 71,500.80 is: 98,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,221.20 : 164,539.56 = 71,500.80 : x
  2. Step 2: Convert to fraction form
    119,221.20/164,539.56 = 71,500.80/x
  3. Step 3: Cross multiply
    119,221.20x = 164,539.56 × 71,500.80
  4. Step 4: Simplify right side
    119,221.20x = 11,764,710,171.65
  5. Step 5: Solve for x
    x = 11,764,710,171.65/119,221.20
  6. Step 6: Final answer
    x = 98,679.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.