Home / 129,454.28-194,256.90-54,569.84

Finding the Fourth Proportional to 129,454.28, 194,256.90 and 54,569.84

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Solution

The fourth proportional to 129,454.28, 194,256.90 and 54,569.84 is: 81,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,454.28 : 194,256.90 = 54,569.84 : x
  2. Step 2: Convert to fraction form
    129,454.28/194,256.90 = 54,569.84/x
  3. Step 3: Cross multiply
    129,454.28x = 194,256.90 × 54,569.84
  4. Step 4: Simplify right side
    129,454.28x = 10,600,567,951.90
  5. Step 5: Solve for x
    x = 10,600,567,951.90/129,454.28
  6. Step 6: Final answer
    x = 81,886.58

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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.