Home / 239,812.72-359,634.63-79,845.21

Finding the Fourth Proportional to 239,812.72, 359,634.63 and 79,845.21

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Solution

The fourth proportional to 239,812.72, 359,634.63 and 79,845.21 is: 119,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,812.72 : 359,634.63 = 79,845.21 : x
  2. Step 2: Convert to fraction form
    239,812.72/359,634.63 = 79,845.21/x
  3. Step 3: Cross multiply
    239,812.72x = 359,634.63 × 79,845.21
  4. Step 4: Simplify right side
    239,812.72x = 28,715,102,855.04
  5. Step 5: Solve for x
    x = 28,715,102,855.04/239,812.72
  6. Step 6: Final answer
    x = 119,739.70

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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.