Home / 194,712.75-268,703.64-105,288.75

Finding the Fourth Proportional to 194,712.75, 268,703.64 and 105,288.75

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Solution

The fourth proportional to 194,712.75, 268,703.64 and 105,288.75 is: 145,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,712.75 : 268,703.64 = 105,288.75 : x
  2. Step 2: Convert to fraction form
    194,712.75/268,703.64 = 105,288.75/x
  3. Step 3: Cross multiply
    194,712.75x = 268,703.64 × 105,288.75
  4. Step 4: Simplify right side
    194,712.75x = 28,291,470,376.05
  5. Step 5: Solve for x
    x = 28,291,470,376.05/194,712.75
  6. Step 6: Final answer
    x = 145,298.50

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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.