Home / 402,063.03-603,028.89-135,817.65

Finding the Fourth Proportional to 402,063.03, 603,028.89 and 135,817.65

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Solution

The fourth proportional to 402,063.03, 603,028.89 and 135,817.65 is: 203,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,063.03 : 603,028.89 = 135,817.65 : x
  2. Step 2: Convert to fraction form
    402,063.03/603,028.89 = 135,817.65/x
  3. Step 3: Cross multiply
    402,063.03x = 603,028.89 × 135,817.65
  4. Step 4: Simplify right side
    402,063.03x = 81,901,966,721.91
  5. Step 5: Solve for x
    x = 81,901,966,721.91/402,063.03
  6. Step 6: Final answer
    x = 203,704.30

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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.