Home / 121,890.36-182,749.68-46,947.72

Finding the Fourth Proportional to 121,890.36, 182,749.68 and 46,947.72

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Solution

The fourth proportional to 121,890.36, 182,749.68 and 46,947.72 is: 70,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,890.36 : 182,749.68 = 46,947.72 : x
  2. Step 2: Convert to fraction form
    121,890.36/182,749.68 = 46,947.72/x
  3. Step 3: Cross multiply
    121,890.36x = 182,749.68 × 46,947.72
  4. Step 4: Simplify right side
    121,890.36x = 8,579,680,806.73
  5. Step 5: Solve for x
    x = 8,579,680,806.73/121,890.36
  6. Step 6: Final answer
    x = 70,388.51

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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.