Home / 193,845.74-290,649.57-75,378.98

Finding the Fourth Proportional to 193,845.74, 290,649.57 and 75,378.98

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Solution

The fourth proportional to 193,845.74, 290,649.57 and 75,378.98 is: 113,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,845.74 : 290,649.57 = 75,378.98 : x
  2. Step 2: Convert to fraction form
    193,845.74/290,649.57 = 75,378.98/x
  3. Step 3: Cross multiply
    193,845.74x = 290,649.57 × 75,378.98
  4. Step 4: Simplify right side
    193,845.74x = 21,908,868,124.04
  5. Step 5: Solve for x
    x = 21,908,868,124.04/193,845.74
  6. Step 6: Final answer
    x = 113,022.18

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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.