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Finding the Fourth Proportional to 122,377.20, 183,479.40 and 47,468.40

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Solution

The fourth proportional to 122,377.20, 183,479.40 and 47,468.40 is: 71,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,377.20 : 183,479.40 = 47,468.40 : x
  2. Step 2: Convert to fraction form
    122,377.20/183,479.40 = 47,468.40/x
  3. Step 3: Cross multiply
    122,377.20x = 183,479.40 × 47,468.40
  4. Step 4: Simplify right side
    122,377.20x = 8,709,473,550.96
  5. Step 5: Solve for x
    x = 8,709,473,550.96/122,377.20
  6. Step 6: Final answer
    x = 71,169.09

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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.