Home / 190,468.32-285,704.88-131,288.08

Finding the Fourth Proportional to 190,468.32, 285,704.88 and 131,288.08

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Solution

The fourth proportional to 190,468.32, 285,704.88 and 131,288.08 is: 196,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,468.32 : 285,704.88 = 131,288.08 : x
  2. Step 2: Convert to fraction form
    190,468.32/285,704.88 = 131,288.08/x
  3. Step 3: Cross multiply
    190,468.32x = 285,704.88 × 131,288.08
  4. Step 4: Simplify right side
    190,468.32x = 37,509,645,141.83
  5. Step 5: Solve for x
    x = 37,509,645,141.83/190,468.32
  6. Step 6: Final answer
    x = 196,933.77

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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.