Home / 129,612.33-194,445.63-54,732.69

Finding the Fourth Proportional to 129,612.33, 194,445.63 and 54,732.69

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Solution

The fourth proportional to 129,612.33, 194,445.63 and 54,732.69 is: 82,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,612.33 : 194,445.63 = 54,732.69 : x
  2. Step 2: Convert to fraction form
    129,612.33/194,445.63 = 54,732.69/x
  3. Step 3: Cross multiply
    129,612.33x = 194,445.63 × 54,732.69
  4. Step 4: Simplify right side
    129,612.33x = 10,642,532,388.64
  5. Step 5: Solve for x
    x = 10,642,532,388.64/129,612.33
  6. Step 6: Final answer
    x = 82,110.49

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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.