Home / 166,769.07-230,139.71-90,286.21

Finding the Fourth Proportional to 166,769.07, 230,139.71 and 90,286.21

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Solution

The fourth proportional to 166,769.07, 230,139.71 and 90,286.21 is: 124,594.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,769.07 : 230,139.71 = 90,286.21 : x
  2. Step 2: Convert to fraction form
    166,769.07/230,139.71 = 90,286.21/x
  3. Step 3: Cross multiply
    166,769.07x = 230,139.71 × 90,286.21
  4. Step 4: Simplify right side
    166,769.07x = 20,778,441,159.62
  5. Step 5: Solve for x
    x = 20,778,441,159.62/166,769.07
  6. Step 6: Final answer
    x = 124,594.09

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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.