Home / 165,998.57-229,078.73-90,548.69

Finding the Fourth Proportional to 165,998.57, 229,078.73 and 90,548.69

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Solution

The fourth proportional to 165,998.57, 229,078.73 and 90,548.69 is: 124,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,998.57 : 229,078.73 = 90,548.69 : x
  2. Step 2: Convert to fraction form
    165,998.57/229,078.73 = 90,548.69/x
  3. Step 3: Cross multiply
    165,998.57x = 229,078.73 × 90,548.69
  4. Step 4: Simplify right side
    165,998.57x = 20,742,777,989.34
  5. Step 5: Solve for x
    x = 20,742,777,989.34/165,998.57
  6. Step 6: Final answer
    x = 124,957.57

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1.5x scale

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.