Home / 166,458.78-229,713.90-91,007.28

Finding the Fourth Proportional to 166,458.78, 229,713.90 and 91,007.28

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Solution

The fourth proportional to 166,458.78, 229,713.90 and 91,007.28 is: 125,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,458.78 : 229,713.90 = 91,007.28 : x
  2. Step 2: Convert to fraction form
    166,458.78/229,713.90 = 91,007.28/x
  3. Step 3: Cross multiply
    166,458.78x = 229,713.90 × 91,007.28
  4. Step 4: Simplify right side
    166,458.78x = 20,905,637,217.19
  5. Step 5: Solve for x
    x = 20,905,637,217.19/166,458.78
  6. Step 6: Final answer
    x = 125,590.47

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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.