Home / 165,806.28-248,685.19-81,543.83

Finding the Fourth Proportional to 165,806.28, 248,685.19 and 81,543.83

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Solution

The fourth proportional to 165,806.28, 248,685.19 and 81,543.83 is: 122,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,806.28 : 248,685.19 = 81,543.83 : x
  2. Step 2: Convert to fraction form
    165,806.28/248,685.19 = 81,543.83/x
  3. Step 3: Cross multiply
    165,806.28x = 248,685.19 × 81,543.83
  4. Step 4: Simplify right side
    165,806.28x = 20,278,742,856.88
  5. Step 5: Solve for x
    x = 20,278,742,856.88/165,806.28
  6. Step 6: Final answer
    x = 122,303.83

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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.