Home / 190,627.89-285,943.88-57,509.30

Finding the Fourth Proportional to 190,627.89, 285,943.88 and 57,509.30

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Solution

The fourth proportional to 190,627.89, 285,943.88 and 57,509.30 is: 86,264.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,627.89 : 285,943.88 = 57,509.30 : x
  2. Step 2: Convert to fraction form
    190,627.89/285,943.88 = 57,509.30/x
  3. Step 3: Cross multiply
    190,627.89x = 285,943.88 × 57,509.30
  4. Step 4: Simplify right side
    190,627.89x = 16,444,432,378.08
  5. Step 5: Solve for x
    x = 16,444,432,378.08/190,627.89
  6. Step 6: Final answer
    x = 86,264.57

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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.