Home / 296,772.09-445,154.16-72,131.88

Finding the Fourth Proportional to 296,772.09, 445,154.16 and 72,131.88

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Solution

The fourth proportional to 296,772.09, 445,154.16 and 72,131.88 is: 108,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,772.09 : 445,154.16 = 72,131.88 : x
  2. Step 2: Convert to fraction form
    296,772.09/445,154.16 = 72,131.88/x
  3. Step 3: Cross multiply
    296,772.09x = 445,154.16 × 72,131.88
  4. Step 4: Simplify right side
    296,772.09x = 32,109,806,450.62
  5. Step 5: Solve for x
    x = 32,109,806,450.62/296,772.09
  6. Step 6: Final answer
    x = 108,196.85

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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.