Home / 275,890.55-413,626.07-142,685.91

Finding the Fourth Proportional to 275,890.55, 413,626.07 and 142,685.91

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Solution

The fourth proportional to 275,890.55, 413,626.07 and 142,685.91 is: 213,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,890.55 : 413,626.07 = 142,685.91 : x
  2. Step 2: Convert to fraction form
    275,890.55/413,626.07 = 142,685.91/x
  3. Step 3: Cross multiply
    275,890.55x = 413,626.07 × 142,685.91
  4. Step 4: Simplify right side
    275,890.55x = 59,018,612,554.39
  5. Step 5: Solve for x
    x = 59,018,612,554.39/275,890.55
  6. Step 6: Final answer
    x = 213,920.39

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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.