Home / 190,400.22-285,640.43-72,068.94

Finding the Fourth Proportional to 190,400.22, 285,640.43 and 72,068.94

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Solution

The fourth proportional to 190,400.22, 285,640.43 and 72,068.94 is: 108,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,400.22 : 285,640.43 = 72,068.94 : x
  2. Step 2: Convert to fraction form
    190,400.22/285,640.43 = 72,068.94/x
  3. Step 3: Cross multiply
    190,400.22x = 285,640.43 × 72,068.94
  4. Step 4: Simplify right side
    190,400.22x = 20,585,802,650.90
  5. Step 5: Solve for x
    x = 20,585,802,650.90/190,400.22
  6. Step 6: Final answer
    x = 108,118.59

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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.