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Finding the Fourth Proportional to 163,354.58, 225,453.73 and 99,729.34

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Solution

The fourth proportional to 163,354.58, 225,453.73 and 99,729.34 is: 137,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,354.58 : 225,453.73 = 99,729.34 : x
  2. Step 2: Convert to fraction form
    163,354.58/225,453.73 = 99,729.34/x
  3. Step 3: Cross multiply
    163,354.58x = 225,453.73 × 99,729.34
  4. Step 4: Simplify right side
    163,354.58x = 22,484,351,693.44
  5. Step 5: Solve for x
    x = 22,484,351,693.44/163,354.58
  6. Step 6: Final answer
    x = 137,641.39

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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.