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Finding the Fourth Proportional to 163,750.71, 225,974.38 and 91,152.45

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Solution

The fourth proportional to 163,750.71, 225,974.38 and 91,152.45 is: 125,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,750.71 : 225,974.38 = 91,152.45 : x
  2. Step 2: Convert to fraction form
    163,750.71/225,974.38 = 91,152.45/x
  3. Step 3: Cross multiply
    163,750.71x = 225,974.38 × 91,152.45
  4. Step 4: Simplify right side
    163,750.71x = 20,598,118,374.23
  5. Step 5: Solve for x
    x = 20,598,118,374.23/163,750.71
  6. Step 6: Final answer
    x = 125,789.49

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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.