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Finding the Fourth Proportional to 185,787.42, 278,609.82 and 79,103.74

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Solution

The fourth proportional to 185,787.42, 278,609.82 and 79,103.74 is: 118,625.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.42 : 278,609.82 = 79,103.74 : x
  2. Step 2: Convert to fraction form
    185,787.42/278,609.82 = 79,103.74/x
  3. Step 3: Cross multiply
    185,787.42x = 278,609.82 × 79,103.74
  4. Step 4: Simplify right side
    185,787.42x = 22,039,077,369.68
  5. Step 5: Solve for x
    x = 22,039,077,369.68/185,787.42
  6. Step 6: Final answer
    x = 118,625.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.