Home / 190,112.40-284,990.40-71,863.20

Finding the Fourth Proportional to 190,112.40, 284,990.40 and 71,863.20

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Solution

The fourth proportional to 190,112.40, 284,990.40 and 71,863.20 is: 107,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,112.40 : 284,990.40 = 71,863.20 : x
  2. Step 2: Convert to fraction form
    190,112.40/284,990.40 = 71,863.20/x
  3. Step 3: Cross multiply
    190,112.40x = 284,990.40 × 71,863.20
  4. Step 4: Simplify right side
    190,112.40x = 20,480,322,113.28
  5. Step 5: Solve for x
    x = 20,480,322,113.28/190,112.40
  6. Step 6: Final answer
    x = 107,727.44

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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.