Home / 166,821.49-230,213.77-90,341.18

Finding the Fourth Proportional to 166,821.49, 230,213.77 and 90,341.18

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Solution

The fourth proportional to 166,821.49, 230,213.77 and 90,341.18 is: 124,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,821.49 : 230,213.77 = 90,341.18 : x
  2. Step 2: Convert to fraction form
    166,821.49/230,213.77 = 90,341.18/x
  3. Step 3: Cross multiply
    166,821.49x = 230,213.77 × 90,341.18
  4. Step 4: Simplify right side
    166,821.49x = 20,797,783,634.05
  5. Step 5: Solve for x
    x = 20,797,783,634.05/166,821.49
  6. Step 6: Final answer
    x = 124,670.89

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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.