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Finding the Fourth Proportional to 129,044.80, 193,528.80 and 50,113.60

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Solution

The fourth proportional to 129,044.80, 193,528.80 and 50,113.60 is: 75,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,044.80 : 193,528.80 = 50,113.60 : x
  2. Step 2: Convert to fraction form
    129,044.80/193,528.80 = 50,113.60/x
  3. Step 3: Cross multiply
    129,044.80x = 193,528.80 × 50,113.60
  4. Step 4: Simplify right side
    129,044.80x = 9,698,424,871.68
  5. Step 5: Solve for x
    x = 9,698,424,871.68/129,044.80
  6. Step 6: Final answer
    x = 75,155.49

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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.