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Finding the Fourth Proportional to 163,305, 225,343.62 and 91,693.08

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Solution

The fourth proportional to 163,305, 225,343.62 and 91,693.08 is: 126,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,305 : 225,343.62 = 91,693.08 : x
  2. Step 2: Convert to fraction form
    163,305/225,343.62 = 91,693.08/x
  3. Step 3: Cross multiply
    163,305x = 225,343.62 × 91,693.08
  4. Step 4: Simplify right side
    163,305x = 20,662,450,576.15
  5. Step 5: Solve for x
    x = 20,662,450,576.15/163,305
  6. Step 6: Final answer
    x = 126,526.75

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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.