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Finding the Fourth Proportional to 163,152.85, 225,147.48 and 90,551.51

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Solution

The fourth proportional to 163,152.85, 225,147.48 and 90,551.51 is: 124,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,152.85 : 225,147.48 = 90,551.51 : x
  2. Step 2: Convert to fraction form
    163,152.85/225,147.48 = 90,551.51/x
  3. Step 3: Cross multiply
    163,152.85x = 225,147.48 × 90,551.51
  4. Step 4: Simplify right side
    163,152.85x = 20,387,444,286.69
  5. Step 5: Solve for x
    x = 20,387,444,286.69/163,152.85
  6. Step 6: Final answer
    x = 124,959.17

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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.