Home / 190,772.31-286,198.97-72,441.03

Finding the Fourth Proportional to 190,772.31, 286,198.97 and 72,441.03

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Solution

The fourth proportional to 190,772.31, 286,198.97 and 72,441.03 is: 108,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,772.31 : 286,198.97 = 72,441.03 : x
  2. Step 2: Convert to fraction form
    190,772.31/286,198.97 = 72,441.03/x
  3. Step 3: Cross multiply
    190,772.31x = 286,198.97 × 72,441.03
  4. Step 4: Simplify right side
    190,772.31x = 20,732,549,290.26
  5. Step 5: Solve for x
    x = 20,732,549,290.26/190,772.31
  6. Step 6: Final answer
    x = 108,676.93

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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.