Home / 190,000.60-285,000.67-76,199.75

Finding the Fourth Proportional to 190,000.60, 285,000.67 and 76,199.75

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Solution

The fourth proportional to 190,000.60, 285,000.67 and 76,199.75 is: 114,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,000.60 : 285,000.67 = 76,199.75 : x
  2. Step 2: Convert to fraction form
    190,000.60/285,000.67 = 76,199.75/x
  3. Step 3: Cross multiply
    190,000.60x = 285,000.67 × 76,199.75
  4. Step 4: Simplify right side
    190,000.60x = 21,716,979,803.83
  5. Step 5: Solve for x
    x = 21,716,979,803.83/190,000.60
  6. Step 6: Final answer
    x = 114,299.53

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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.