Home / 131,579.58-181,600.26-86,388.63

Finding the Fourth Proportional to 131,579.58, 181,600.26 and 86,388.63

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Solution

The fourth proportional to 131,579.58, 181,600.26 and 86,388.63 is: 119,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,579.58 : 181,600.26 = 86,388.63 : x
  2. Step 2: Convert to fraction form
    131,579.58/181,600.26 = 86,388.63/x
  3. Step 3: Cross multiply
    131,579.58x = 181,600.26 × 86,388.63
  4. Step 4: Simplify right side
    131,579.58x = 15,688,197,669.04
  5. Step 5: Solve for x
    x = 15,688,197,669.04/131,579.58
  6. Step 6: Final answer
    x = 119,229.73

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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.