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Finding the Fourth Proportional to 129,809.80, 194,714.70 and 50,926.60

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Solution

The fourth proportional to 129,809.80, 194,714.70 and 50,926.60 is: 76,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,809.80 : 194,714.70 = 50,926.60 : x
  2. Step 2: Convert to fraction form
    129,809.80/194,714.70 = 50,926.60/x
  3. Step 3: Cross multiply
    129,809.80x = 194,714.70 × 50,926.60
  4. Step 4: Simplify right side
    129,809.80x = 9,916,157,641.02
  5. Step 5: Solve for x
    x = 9,916,157,641.02/129,809.80
  6. Step 6: Final answer
    x = 76,389.90

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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.