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Finding the Fourth Proportional to 163,304.51, 225,361.04 and 90,707.85

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Solution

The fourth proportional to 163,304.51, 225,361.04 and 90,707.85 is: 125,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,304.51 : 225,361.04 = 90,707.85 : x
  2. Step 2: Convert to fraction form
    163,304.51/225,361.04 = 90,707.85/x
  3. Step 3: Cross multiply
    163,304.51x = 225,361.04 × 90,707.85
  4. Step 4: Simplify right side
    163,304.51x = 20,442,014,958.62
  5. Step 5: Solve for x
    x = 20,442,014,958.62/163,304.51
  6. Step 6: Final answer
    x = 125,177.29

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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.