Home / 190,465.28-285,700.38-131,285.08

Finding the Fourth Proportional to 190,465.28, 285,700.38 and 131,285.08

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Solution

The fourth proportional to 190,465.28, 285,700.38 and 131,285.08 is: 196,929.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,465.28 : 285,700.38 = 131,285.08 : x
  2. Step 2: Convert to fraction form
    190,465.28/285,700.38 = 131,285.08/x
  3. Step 3: Cross multiply
    190,465.28x = 285,700.38 × 131,285.08
  4. Step 4: Simplify right side
    190,465.28x = 37,508,197,244.33
  5. Step 5: Solve for x
    x = 37,508,197,244.33/190,465.28
  6. Step 6: Final answer
    x = 196,929.32

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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.