Home / 166,326.78-229,530.06-90,875.28

Finding the Fourth Proportional to 166,326.78, 229,530.06 and 90,875.28

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Solution

The fourth proportional to 166,326.78, 229,530.06 and 90,875.28 is: 125,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,326.78 : 229,530.06 = 90,875.28 : x
  2. Step 2: Convert to fraction form
    166,326.78/229,530.06 = 90,875.28/x
  3. Step 3: Cross multiply
    166,326.78x = 229,530.06 × 90,875.28
  4. Step 4: Simplify right side
    166,326.78x = 20,858,608,470.92
  5. Step 5: Solve for x
    x = 20,858,608,470.92/166,326.78
  6. Step 6: Final answer
    x = 125,407.40

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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.