Home / 119,166.28-178,749.26-30,419.78

Finding the Fourth Proportional to 119,166.28, 178,749.26 and 30,419.78

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Solution

The fourth proportional to 119,166.28, 178,749.26 and 30,419.78 is: 45,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,166.28 : 178,749.26 = 30,419.78 : x
  2. Step 2: Convert to fraction form
    119,166.28/178,749.26 = 30,419.78/x
  3. Step 3: Cross multiply
    119,166.28x = 178,749.26 × 30,419.78
  4. Step 4: Simplify right side
    119,166.28x = 5,437,513,164.36
  5. Step 5: Solve for x
    x = 5,437,513,164.36/119,166.28
  6. Step 6: Final answer
    x = 45,629.63

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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.