Home / 166,899.75-230,321.36-90,420.77

Finding the Fourth Proportional to 166,899.75, 230,321.36 and 90,420.77

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Solution

The fourth proportional to 166,899.75, 230,321.36 and 90,420.77 is: 124,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,899.75 : 230,321.36 = 90,420.77 : x
  2. Step 2: Convert to fraction form
    166,899.75/230,321.36 = 90,420.77/x
  3. Step 3: Cross multiply
    166,899.75x = 230,321.36 × 90,420.77
  4. Step 4: Simplify right side
    166,899.75x = 20,825,834,266.54
  5. Step 5: Solve for x
    x = 20,825,834,266.54/166,899.75
  6. Step 6: Final answer
    x = 124,780.50

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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.