Home / 122,842.14-169,506.66-71,844.80

Finding the Fourth Proportional to 122,842.14, 169,506.66 and 71,844.80

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Solution

The fourth proportional to 122,842.14, 169,506.66 and 71,844.80 is: 99,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,842.14 : 169,506.66 = 71,844.80 : x
  2. Step 2: Convert to fraction form
    122,842.14/169,506.66 = 71,844.80/x
  3. Step 3: Cross multiply
    122,842.14x = 169,506.66 × 71,844.80
  4. Step 4: Simplify right side
    122,842.14x = 12,178,172,086.37
  5. Step 5: Solve for x
    x = 12,178,172,086.37/122,842.14
  6. Step 6: Final answer
    x = 99,136.76

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1.5x scale

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.