Home / 190,016.40-284,836.60-90,000.80

Finding the Fourth Proportional to 190,016.40, 284,836.60 and 90,000.80

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Solution

The fourth proportional to 190,016.40, 284,836.60 and 90,000.80 is: 134,912.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,016.40 : 284,836.60 = 90,000.80 : x
  2. Step 2: Convert to fraction form
    190,016.40/284,836.60 = 90,000.80/x
  3. Step 3: Cross multiply
    190,016.40x = 284,836.60 × 90,000.80
  4. Step 4: Simplify right side
    190,016.40x = 25,635,521,869.28
  5. Step 5: Solve for x
    x = 25,635,521,869.28/190,016.40
  6. Step 6: Final answer
    x = 134,912.15

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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.