Home / 166,626.10-229,943.10-90,145

Finding the Fourth Proportional to 166,626.10, 229,943.10 and 90,145

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Solution

The fourth proportional to 166,626.10, 229,943.10 and 90,145 is: 124,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,626.10 : 229,943.10 = 90,145 : x
  2. Step 2: Convert to fraction form
    166,626.10/229,943.10 = 90,145/x
  3. Step 3: Cross multiply
    166,626.10x = 229,943.10 × 90,145
  4. Step 4: Simplify right side
    166,626.10x = 20,728,220,749.50
  5. Step 5: Solve for x
    x = 20,728,220,749.50/166,626.10
  6. Step 6: Final answer
    x = 124,399.60

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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.