Home / 171,629.13-257,460.99-45,278.11

Finding the Fourth Proportional to 171,629.13, 257,460.99 and 45,278.11

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Solution

The fourth proportional to 171,629.13, 257,460.99 and 45,278.11 is: 67,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,629.13 : 257,460.99 = 45,278.11 : x
  2. Step 2: Convert to fraction form
    171,629.13/257,460.99 = 45,278.11/x
  3. Step 3: Cross multiply
    171,629.13x = 257,460.99 × 45,278.11
  4. Step 4: Simplify right side
    171,629.13x = 11,657,345,738.62
  5. Step 5: Solve for x
    x = 11,657,345,738.62/171,629.13
  6. Step 6: Final answer
    x = 67,921.72

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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.