Home / 118,891.20-178,045.20-79,233.60

Finding the Fourth Proportional to 118,891.20, 178,045.20 and 79,233.60

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Solution

The fourth proportional to 118,891.20, 178,045.20 and 79,233.60 is: 118,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,891.20 : 178,045.20 = 79,233.60 : x
  2. Step 2: Convert to fraction form
    118,891.20/178,045.20 = 79,233.60/x
  3. Step 3: Cross multiply
    118,891.20x = 178,045.20 × 79,233.60
  4. Step 4: Simplify right side
    118,891.20x = 14,107,162,158.72
  5. Step 5: Solve for x
    x = 14,107,162,158.72/118,891.20
  6. Step 6: Final answer
    x = 118,656.07

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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.