Home / 215,173.13-322,811.53-67,429.13

Finding the Fourth Proportional to 215,173.13, 322,811.53 and 67,429.13

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Solution

The fourth proportional to 215,173.13, 322,811.53 and 67,429.13 is: 101,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,173.13 : 322,811.53 = 67,429.13 : x
  2. Step 2: Convert to fraction form
    215,173.13/322,811.53 = 67,429.13/x
  3. Step 3: Cross multiply
    215,173.13x = 322,811.53 × 67,429.13
  4. Step 4: Simplify right side
    215,173.13x = 21,766,898,839.24
  5. Step 5: Solve for x
    x = 21,766,898,839.24/215,173.13
  6. Step 6: Final answer
    x = 101,159.93

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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.