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Finding the Fourth Proportional to 144,630.60, 217,140.30 and 92,142.60

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Solution

The fourth proportional to 144,630.60, 217,140.30 and 92,142.60 is: 138,337.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,630.60 : 217,140.30 = 92,142.60 : x
  2. Step 2: Convert to fraction form
    144,630.60/217,140.30 = 92,142.60/x
  3. Step 3: Cross multiply
    144,630.60x = 217,140.30 × 92,142.60
  4. Step 4: Simplify right side
    144,630.60x = 20,007,871,806.78
  5. Step 5: Solve for x
    x = 20,007,871,806.78/144,630.60
  6. Step 6: Final answer
    x = 138,337.75

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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.