Home / 190,633.75-285,764.67-90,767.11

Finding the Fourth Proportional to 190,633.75, 285,764.67 and 90,767.11

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Solution

The fourth proportional to 190,633.75, 285,764.67 and 90,767.11 is: 136,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.75 : 285,764.67 = 90,767.11 : x
  2. Step 2: Convert to fraction form
    190,633.75/285,764.67 = 90,767.11/x
  3. Step 3: Cross multiply
    190,633.75x = 285,764.67 × 90,767.11
  4. Step 4: Simplify right side
    190,633.75x = 25,938,033,236.00
  5. Step 5: Solve for x
    x = 25,938,033,236.00/190,633.75
  6. Step 6: Final answer
    x = 136,062.13

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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.