Home / 194,864.45-268,913.75-105,440.45

Finding the Fourth Proportional to 194,864.45, 268,913.75 and 105,440.45

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Solution

The fourth proportional to 194,864.45, 268,913.75 and 105,440.45 is: 145,508.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,864.45 : 268,913.75 = 105,440.45 : x
  2. Step 2: Convert to fraction form
    194,864.45/268,913.75 = 105,440.45/x
  3. Step 3: Cross multiply
    194,864.45x = 268,913.75 × 105,440.45
  4. Step 4: Simplify right side
    194,864.45x = 28,354,384,939.42
  5. Step 5: Solve for x
    x = 28,354,384,939.42/194,864.45
  6. Step 6: Final answer
    x = 145,508.25

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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.