Home / 218,825.14-328,237.72-69,170.56

Finding the Fourth Proportional to 218,825.14, 328,237.72 and 69,170.56

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Solution

The fourth proportional to 218,825.14, 328,237.72 and 69,170.56 is: 103,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,825.14 : 328,237.72 = 69,170.56 : x
  2. Step 2: Convert to fraction form
    218,825.14/328,237.72 = 69,170.56/x
  3. Step 3: Cross multiply
    218,825.14x = 328,237.72 × 69,170.56
  4. Step 4: Simplify right side
    218,825.14x = 22,704,386,905.52
  5. Step 5: Solve for x
    x = 22,704,386,905.52/218,825.14
  6. Step 6: Final answer
    x = 103,755.84

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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.