Home / 129,943.40-194,915.10-106,323.80

Finding the Fourth Proportional to 129,943.40, 194,915.10 and 106,323.80

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Solution

The fourth proportional to 129,943.40, 194,915.10 and 106,323.80 is: 159,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,943.40 : 194,915.10 = 106,323.80 : x
  2. Step 2: Convert to fraction form
    129,943.40/194,915.10 = 106,323.80/x
  3. Step 3: Cross multiply
    129,943.40x = 194,915.10 × 106,323.80
  4. Step 4: Simplify right side
    129,943.40x = 20,724,114,109.38
  5. Step 5: Solve for x
    x = 20,724,114,109.38/129,943.40
  6. Step 6: Final answer
    x = 159,485.70

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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.