Home / 190,432.74-285,685.26-76,589.28

Finding the Fourth Proportional to 190,432.74, 285,685.26 and 76,589.28

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Solution

The fourth proportional to 190,432.74, 285,685.26 and 76,589.28 is: 114,898.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,432.74 : 285,685.26 = 76,589.28 : x
  2. Step 2: Convert to fraction form
    190,432.74/285,685.26 = 76,589.28/x
  3. Step 3: Cross multiply
    190,432.74x = 285,685.26 × 76,589.28
  4. Step 4: Simplify right side
    190,432.74x = 21,880,428,370.01
  5. Step 5: Solve for x
    x = 21,880,428,370.01/190,432.74
  6. Step 6: Final answer
    x = 114,898.46

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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.