Home / 142,559.91-196,781.85-82,154.63

Finding the Fourth Proportional to 142,559.91, 196,781.85 and 82,154.63

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Solution

The fourth proportional to 142,559.91, 196,781.85 and 82,154.63 is: 113,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,559.91 : 196,781.85 = 82,154.63 : x
  2. Step 2: Convert to fraction form
    142,559.91/196,781.85 = 82,154.63/x
  3. Step 3: Cross multiply
    142,559.91x = 196,781.85 × 82,154.63
  4. Step 4: Simplify right side
    142,559.91x = 16,166,539,093.56
  5. Step 5: Solve for x
    x = 16,166,539,093.56/142,559.91
  6. Step 6: Final answer
    x = 113,401.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.