Home / 166,179.81-229,326.96-90,728.31

Finding the Fourth Proportional to 166,179.81, 229,326.96 and 90,728.31

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Solution

The fourth proportional to 166,179.81, 229,326.96 and 90,728.31 is: 125,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,179.81 : 229,326.96 = 90,728.31 : x
  2. Step 2: Convert to fraction form
    166,179.81/229,326.96 = 90,728.31/x
  3. Step 3: Cross multiply
    166,179.81x = 229,326.96 × 90,728.31
  4. Step 4: Simplify right side
    166,179.81x = 20,806,447,518.24
  5. Step 5: Solve for x
    x = 20,806,447,518.24/166,179.81
  6. Step 6: Final answer
    x = 125,204.42

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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.