Home / 166,969.10-230,416.85-90,490.38

Finding the Fourth Proportional to 166,969.10, 230,416.85 and 90,490.38

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Solution

The fourth proportional to 166,969.10, 230,416.85 and 90,490.38 is: 124,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,969.10 : 230,416.85 = 90,490.38 : x
  2. Step 2: Convert to fraction form
    166,969.10/230,416.85 = 90,490.38/x
  3. Step 3: Cross multiply
    166,969.10x = 230,416.85 × 90,490.38
  4. Step 4: Simplify right side
    166,969.10x = 20,850,508,314.90
  5. Step 5: Solve for x
    x = 20,850,508,314.90/166,969.10
  6. Step 6: Final answer
    x = 124,876.45

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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.