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Finding the Fourth Proportional to 163,252.31, 225,270.90 and 91,640.21

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Solution

The fourth proportional to 163,252.31, 225,270.90 and 91,640.21 is: 126,453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,252.31 : 225,270.90 = 91,640.21 : x
  2. Step 2: Convert to fraction form
    163,252.31/225,270.90 = 91,640.21/x
  3. Step 3: Cross multiply
    163,252.31x = 225,270.90 × 91,640.21
  4. Step 4: Simplify right side
    163,252.31x = 20,643,872,582.89
  5. Step 5: Solve for x
    x = 20,643,872,582.89/163,252.31
  6. Step 6: Final answer
    x = 126,453.79

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1.5x scale

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.