Home / 165,399.96-247,877.19-90,407.46

Finding the Fourth Proportional to 165,399.96, 247,877.19 and 90,407.46

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Solution

The fourth proportional to 165,399.96, 247,877.19 and 90,407.46 is: 135,489.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,399.96 : 247,877.19 = 90,407.46 : x
  2. Step 2: Convert to fraction form
    165,399.96/247,877.19 = 90,407.46/x
  3. Step 3: Cross multiply
    165,399.96x = 247,877.19 × 90,407.46
  4. Step 4: Simplify right side
    165,399.96x = 22,409,947,139.84
  5. Step 5: Solve for x
    x = 22,409,947,139.84/165,399.96
  6. Step 6: Final answer
    x = 135,489.44

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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.