Home / 142,255.85-213,503.49-71,157.15

Finding the Fourth Proportional to 142,255.85, 213,503.49 and 71,157.15

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Solution

The fourth proportional to 142,255.85, 213,503.49 and 71,157.15 is: 106,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,255.85 : 213,503.49 = 71,157.15 : x
  2. Step 2: Convert to fraction form
    142,255.85/213,503.49 = 71,157.15/x
  3. Step 3: Cross multiply
    142,255.85x = 213,503.49 × 71,157.15
  4. Step 4: Simplify right side
    142,255.85x = 15,192,299,863.45
  5. Step 5: Solve for x
    x = 15,192,299,863.45/142,255.85
  6. Step 6: Final answer
    x = 106,795.61

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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.