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Finding the Fourth Proportional to 79,200.57, 118,206.01 and 68,479.62

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Solution

The fourth proportional to 79,200.57, 118,206.01 and 68,479.62 is: 102,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.57 : 118,206.01 = 68,479.62 : x
  2. Step 2: Convert to fraction form
    79,200.57/118,206.01 = 68,479.62/x
  3. Step 3: Cross multiply
    79,200.57x = 118,206.01 × 68,479.62
  4. Step 4: Simplify right side
    79,200.57x = 8,094,702,646.52
  5. Step 5: Solve for x
    x = 8,094,702,646.52/79,200.57
  6. Step 6: Final answer
    x = 102,205.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.