Home / 131,621.76-197,226-89,521.92

Finding the Fourth Proportional to 131,621.76, 197,226 and 89,521.92

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Solution

The fourth proportional to 131,621.76, 197,226 and 89,521.92 is: 134,142.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,621.76 : 197,226 = 89,521.92 : x
  2. Step 2: Convert to fraction form
    131,621.76/197,226 = 89,521.92/x
  3. Step 3: Cross multiply
    131,621.76x = 197,226 × 89,521.92
  4. Step 4: Simplify right side
    131,621.76x = 17,656,050,193.92
  5. Step 5: Solve for x
    x = 17,656,050,193.92/131,621.76
  6. Step 6: Final answer
    x = 134,142.33

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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.