Home / 194,709.12-268,698.60-105,285.12

Finding the Fourth Proportional to 194,709.12, 268,698.60 and 105,285.12

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Solution

The fourth proportional to 194,709.12, 268,698.60 and 105,285.12 is: 145,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,709.12 : 268,698.60 = 105,285.12 : x
  2. Step 2: Convert to fraction form
    194,709.12/268,698.60 = 105,285.12/x
  3. Step 3: Cross multiply
    194,709.12x = 268,698.60 × 105,285.12
  4. Step 4: Simplify right side
    194,709.12x = 28,289,964,344.83
  5. Step 5: Solve for x
    x = 28,289,964,344.83/194,709.12
  6. Step 6: Final answer
    x = 145,293.47

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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.