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Finding the Fourth Proportional to 163,580.52, 225,753.02 and 99,930.32

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Solution

The fourth proportional to 163,580.52, 225,753.02 and 99,930.32 is: 137,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,580.52 : 225,753.02 = 99,930.32 : x
  2. Step 2: Convert to fraction form
    163,580.52/225,753.02 = 99,930.32/x
  3. Step 3: Cross multiply
    163,580.52x = 225,753.02 × 99,930.32
  4. Step 4: Simplify right side
    163,580.52x = 22,559,571,529.57
  5. Step 5: Solve for x
    x = 22,559,571,529.57/163,580.52
  6. Step 6: Final answer
    x = 137,911.11

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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.