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Finding the Fourth Proportional to 109,325.60, 163,939.80 and 50,130.80

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Solution

The fourth proportional to 109,325.60, 163,939.80 and 50,130.80 is: 75,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,325.60 : 163,939.80 = 50,130.80 : x
  2. Step 2: Convert to fraction form
    109,325.60/163,939.80 = 50,130.80/x
  3. Step 3: Cross multiply
    109,325.60x = 163,939.80 × 50,130.80
  4. Step 4: Simplify right side
    109,325.60x = 8,218,433,325.84
  5. Step 5: Solve for x
    x = 8,218,433,325.84/109,325.60
  6. Step 6: Final answer
    x = 75,173.91

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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.