Home / 190,318.32-285,283.08-123,891.84

Finding the Fourth Proportional to 190,318.32, 285,283.08 and 123,891.84

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Solution

The fourth proportional to 190,318.32, 285,283.08 and 123,891.84 is: 185,711.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,318.32 : 285,283.08 = 123,891.84 : x
  2. Step 2: Convert to fraction form
    190,318.32/285,283.08 = 123,891.84/x
  3. Step 3: Cross multiply
    190,318.32x = 285,283.08 × 123,891.84
  4. Step 4: Simplify right side
    190,318.32x = 35,344,245,702.07
  5. Step 5: Solve for x
    x = 35,344,245,702.07/190,318.32
  6. Step 6: Final answer
    x = 185,711.21

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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.