Home / 145,942.45-218,913.68-67,122.97

Finding the Fourth Proportional to 145,942.45, 218,913.68 and 67,122.97

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Solution

The fourth proportional to 145,942.45, 218,913.68 and 67,122.97 is: 100,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,942.45 : 218,913.68 = 67,122.97 : x
  2. Step 2: Convert to fraction form
    145,942.45/218,913.68 = 67,122.97/x
  3. Step 3: Cross multiply
    145,942.45x = 218,913.68 × 67,122.97
  4. Step 4: Simplify right side
    145,942.45x = 14,694,135,492.33
  5. Step 5: Solve for x
    x = 14,694,135,492.33/145,942.45
  6. Step 6: Final answer
    x = 100,684.45

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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.