Home / 142,974.56-214,322.38-68,074.58

Finding the Fourth Proportional to 142,974.56, 214,322.38 and 68,074.58

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Solution

The fourth proportional to 142,974.56, 214,322.38 and 68,074.58 is: 102,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.56 : 214,322.38 = 68,074.58 : x
  2. Step 2: Convert to fraction form
    142,974.56/214,322.38 = 68,074.58/x
  3. Step 3: Cross multiply
    142,974.56x = 214,322.38 × 68,074.58
  4. Step 4: Simplify right side
    142,974.56x = 14,589,906,368.72
  5. Step 5: Solve for x
    x = 14,589,906,368.72/142,974.56
  6. Step 6: Final answer
    x = 102,045.47

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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.