Home / 179,057.71-247,142.78-102,621.60

Finding the Fourth Proportional to 179,057.71, 247,142.78 and 102,621.60

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Solution

The fourth proportional to 179,057.71, 247,142.78 and 102,621.60 is: 141,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,057.71 : 247,142.78 = 102,621.60 : x
  2. Step 2: Convert to fraction form
    179,057.71/247,142.78 = 102,621.60/x
  3. Step 3: Cross multiply
    179,057.71x = 247,142.78 × 102,621.60
  4. Step 4: Simplify right side
    179,057.71x = 25,362,186,998.94
  5. Step 5: Solve for x
    x = 25,362,186,998.94/179,057.71
  6. Step 6: Final answer
    x = 141,642.53

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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.