Home / 190,528.91-285,232.64-127,191.90

Finding the Fourth Proportional to 190,528.91, 285,232.64 and 127,191.90

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Solution

The fourth proportional to 190,528.91, 285,232.64 and 127,191.90 is: 190,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,528.91 : 285,232.64 = 127,191.90 : x
  2. Step 2: Convert to fraction form
    190,528.91/285,232.64 = 127,191.90/x
  3. Step 3: Cross multiply
    190,528.91x = 285,232.64 × 127,191.90
  4. Step 4: Simplify right side
    190,528.91x = 36,279,280,787.66
  5. Step 5: Solve for x
    x = 36,279,280,787.66/190,528.91
  6. Step 6: Final answer
    x = 190,413.53

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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.