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Finding the Fourth Proportional to 109,143.45, 150,613.02 and 60,747.84

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Solution

The fourth proportional to 109,143.45, 150,613.02 and 60,747.84 is: 83,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,143.45 : 150,613.02 = 60,747.84 : x
  2. Step 2: Convert to fraction form
    109,143.45/150,613.02 = 60,747.84/x
  3. Step 3: Cross multiply
    109,143.45x = 150,613.02 × 60,747.84
  4. Step 4: Simplify right side
    109,143.45x = 9,149,415,640.88
  5. Step 5: Solve for x
    x = 9,149,415,640.88/109,143.45
  6. Step 6: Final answer
    x = 83,829.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.