Home / 166,140.21-229,273.43-90,688.71

Finding the Fourth Proportional to 166,140.21, 229,273.43 and 90,688.71

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Solution

The fourth proportional to 166,140.21, 229,273.43 and 90,688.71 is: 125,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,140.21 : 229,273.43 = 90,688.71 : x
  2. Step 2: Convert to fraction form
    166,140.21/229,273.43 = 90,688.71/x
  3. Step 3: Cross multiply
    166,140.21x = 229,273.43 × 90,688.71
  4. Step 4: Simplify right side
    166,140.21x = 20,792,511,603.98
  5. Step 5: Solve for x
    x = 20,792,511,603.98/166,140.21
  6. Step 6: Final answer
    x = 125,150.39

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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.