Home / 175,041.20-262,561.80-81,729.20

Finding the Fourth Proportional to 175,041.20, 262,561.80 and 81,729.20

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Solution

The fourth proportional to 175,041.20, 262,561.80 and 81,729.20 is: 122,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,041.20 : 262,561.80 = 81,729.20 : x
  2. Step 2: Convert to fraction form
    175,041.20/262,561.80 = 81,729.20/x
  3. Step 3: Cross multiply
    175,041.20x = 262,561.80 × 81,729.20
  4. Step 4: Simplify right side
    175,041.20x = 21,458,965,864.56
  5. Step 5: Solve for x
    x = 21,458,965,864.56/175,041.20
  6. Step 6: Final answer
    x = 122,593.80

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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.