Home / 131,496.54-197,186.48-81,574.62

Finding the Fourth Proportional to 131,496.54, 197,186.48 and 81,574.62

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Solution

The fourth proportional to 131,496.54, 197,186.48 and 81,574.62 is: 122,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,496.54 : 197,186.48 = 81,574.62 : x
  2. Step 2: Convert to fraction form
    131,496.54/197,186.48 = 81,574.62/x
  3. Step 3: Cross multiply
    131,496.54x = 197,186.48 × 81,574.62
  4. Step 4: Simplify right side
    131,496.54x = 16,085,412,175.14
  5. Step 5: Solve for x
    x = 16,085,412,175.14/131,496.54
  6. Step 6: Final answer
    x = 122,325.74

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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.