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Finding the Fourth Proportional to 163,280.49, 225,311.67 and 91,646.52

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Solution

The fourth proportional to 163,280.49, 225,311.67 and 91,646.52 is: 126,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,280.49 : 225,311.67 = 91,646.52 : x
  2. Step 2: Convert to fraction form
    163,280.49/225,311.67 = 91,646.52/x
  3. Step 3: Cross multiply
    163,280.49x = 225,311.67 × 91,646.52
  4. Step 4: Simplify right side
    163,280.49x = 20,649,030,470.89
  5. Step 5: Solve for x
    x = 20,649,030,470.89/163,280.49
  6. Step 6: Final answer
    x = 126,463.55

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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.