Home / 166,059.36-229,158-90,609.12

Finding the Fourth Proportional to 166,059.36, 229,158 and 90,609.12

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Solution

The fourth proportional to 166,059.36, 229,158 and 90,609.12 is: 125,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,059.36 : 229,158 = 90,609.12 : x
  2. Step 2: Convert to fraction form
    166,059.36/229,158 = 90,609.12/x
  3. Step 3: Cross multiply
    166,059.36x = 229,158 × 90,609.12
  4. Step 4: Simplify right side
    166,059.36x = 20,763,804,720.96
  5. Step 5: Solve for x
    x = 20,763,804,720.96/166,059.36
  6. Step 6: Final answer
    x = 125,038.45

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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.