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Finding the Fourth Proportional to 190,670.83, 285,894.09 and 72,350.49

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Solution

The fourth proportional to 190,670.83, 285,894.09 and 72,350.49 is: 108,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,670.83 : 285,894.09 = 72,350.49 : x
  2. Step 2: Convert to fraction form
    190,670.83/285,894.09 = 72,350.49/x
  3. Step 3: Cross multiply
    190,670.83x = 285,894.09 × 72,350.49
  4. Step 4: Simplify right side
    190,670.83x = 20,684,577,499.60
  5. Step 5: Solve for x
    x = 20,684,577,499.60/190,670.83
  6. Step 6: Final answer
    x = 108,483.18

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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.