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Finding the Fourth Proportional to 129,808.58, 194,732.91 and 54,929.34

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Solution

The fourth proportional to 129,808.58, 194,732.91 and 54,929.34 is: 82,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,808.58 : 194,732.91 = 54,929.34 : x
  2. Step 2: Convert to fraction form
    129,808.58/194,732.91 = 54,929.34/x
  3. Step 3: Cross multiply
    129,808.58x = 194,732.91 × 54,929.34
  4. Step 4: Simplify right side
    129,808.58x = 10,696,550,222.58
  5. Step 5: Solve for x
    x = 10,696,550,222.58/129,808.58
  6. Step 6: Final answer
    x = 82,402.49

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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.