Home / 194,913.78-268,981.04-105,489.78

Finding the Fourth Proportional to 194,913.78, 268,981.04 and 105,489.78

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Solution

The fourth proportional to 194,913.78, 268,981.04 and 105,489.78 is: 145,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,913.78 : 268,981.04 = 105,489.78 : x
  2. Step 2: Convert to fraction form
    194,913.78/268,981.04 = 105,489.78/x
  3. Step 3: Cross multiply
    194,913.78x = 268,981.04 × 105,489.78
  4. Step 4: Simplify right side
    194,913.78x = 28,374,750,733.77
  5. Step 5: Solve for x
    x = 28,374,750,733.77/194,913.78
  6. Step 6: Final answer
    x = 145,575.91

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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.