Home / 131,501.16-197,193.42-81,579.24

Finding the Fourth Proportional to 131,501.16, 197,193.42 and 81,579.24

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Solution

The fourth proportional to 131,501.16, 197,193.42 and 81,579.24 is: 122,332.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,501.16 : 197,193.42 = 81,579.24 : x
  2. Step 2: Convert to fraction form
    131,501.16/197,193.42 = 81,579.24/x
  3. Step 3: Cross multiply
    131,501.16x = 197,193.42 × 81,579.24
  4. Step 4: Simplify right side
    131,501.16x = 16,086,889,336.60
  5. Step 5: Solve for x
    x = 16,086,889,336.60/131,501.16
  6. Step 6: Final answer
    x = 122,332.68

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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.