Home / 161,723.20-242,498.40-68,123.20

Finding the Fourth Proportional to 161,723.20, 242,498.40 and 68,123.20

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Solution

The fourth proportional to 161,723.20, 242,498.40 and 68,123.20 is: 102,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,723.20 : 242,498.40 = 68,123.20 : x
  2. Step 2: Convert to fraction form
    161,723.20/242,498.40 = 68,123.20/x
  3. Step 3: Cross multiply
    161,723.20x = 242,498.40 × 68,123.20
  4. Step 4: Simplify right side
    161,723.20x = 16,519,767,002.88
  5. Step 5: Solve for x
    x = 16,519,767,002.88/161,723.20
  6. Step 6: Final answer
    x = 102,148.41

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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.