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Finding the Fourth Proportional to 163,432.89, 225,536.02 and 91,811.37

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Solution

The fourth proportional to 163,432.89, 225,536.02 and 91,811.37 is: 126,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,432.89 : 225,536.02 = 91,811.37 : x
  2. Step 2: Convert to fraction form
    163,432.89/225,536.02 = 91,811.37/x
  3. Step 3: Cross multiply
    163,432.89x = 225,536.02 × 91,811.37
  4. Step 4: Simplify right side
    163,432.89x = 20,706,771,267.46
  5. Step 5: Solve for x
    x = 20,706,771,267.46/163,432.89
  6. Step 6: Final answer
    x = 126,698.93

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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.