Home / 194,845.50-268,886.80-105,421.50

Finding the Fourth Proportional to 194,845.50, 268,886.80 and 105,421.50

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Solution

The fourth proportional to 194,845.50, 268,886.80 and 105,421.50 is: 145,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,845.50 : 268,886.80 = 105,421.50 : x
  2. Step 2: Convert to fraction form
    194,845.50/268,886.80 = 105,421.50/x
  3. Step 3: Cross multiply
    194,845.50x = 268,886.80 × 105,421.50
  4. Step 4: Simplify right side
    194,845.50x = 28,346,449,786.20
  5. Step 5: Solve for x
    x = 28,346,449,786.20/194,845.50
  6. Step 6: Final answer
    x = 145,481.68

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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.