Home / 142,199.30-213,361.21-67,372.91

Finding the Fourth Proportional to 142,199.30, 213,361.21 and 67,372.91

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Solution

The fourth proportional to 142,199.30, 213,361.21 and 67,372.91 is: 101,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,199.30 : 213,361.21 = 67,372.91 : x
  2. Step 2: Convert to fraction form
    142,199.30/213,361.21 = 67,372.91/x
  3. Step 3: Cross multiply
    142,199.30x = 213,361.21 × 67,372.91
  4. Step 4: Simplify right side
    142,199.30x = 14,374,766,805.98
  5. Step 5: Solve for x
    x = 14,374,766,805.98/142,199.30
  6. Step 6: Final answer
    x = 101,088.87

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1.5x scale

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.