Home / 190,025.40-284,859.90-71,776.20

Finding the Fourth Proportional to 190,025.40, 284,859.90 and 71,776.20

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Solution

The fourth proportional to 190,025.40, 284,859.90 and 71,776.20 is: 107,596.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,025.40 : 284,859.90 = 71,776.20 : x
  2. Step 2: Convert to fraction form
    190,025.40/284,859.90 = 71,776.20/x
  3. Step 3: Cross multiply
    190,025.40x = 284,859.90 × 71,776.20
  4. Step 4: Simplify right side
    190,025.40x = 20,446,161,154.38
  5. Step 5: Solve for x
    x = 20,446,161,154.38/190,025.40
  6. Step 6: Final answer
    x = 107,596.99

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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.