Home / 129,915.04-194,906.76-55,038.22

Finding the Fourth Proportional to 129,915.04, 194,906.76 and 55,038.22

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Solution

The fourth proportional to 129,915.04, 194,906.76 and 55,038.22 is: 82,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915.04 : 194,906.76 = 55,038.22 : x
  2. Step 2: Convert to fraction form
    129,915.04/194,906.76 = 55,038.22/x
  3. Step 3: Cross multiply
    129,915.04x = 194,906.76 × 55,038.22
  4. Step 4: Simplify right side
    129,915.04x = 10,727,321,136.37
  5. Step 5: Solve for x
    x = 10,727,321,136.37/129,915.04
  6. Step 6: Final answer
    x = 82,571.82

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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.