Home / 190,208.10-285,109.83-71,829.06

Finding the Fourth Proportional to 190,208.10, 285,109.83 and 71,829.06

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Solution

The fourth proportional to 190,208.10, 285,109.83 and 71,829.06 is: 107,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,208.10 : 285,109.83 = 71,829.06 : x
  2. Step 2: Convert to fraction form
    190,208.10/285,109.83 = 71,829.06/x
  3. Step 3: Cross multiply
    190,208.10x = 285,109.83 × 71,829.06
  4. Step 4: Simplify right side
    190,208.10x = 20,479,171,085.66
  5. Step 5: Solve for x
    x = 20,479,171,085.66/190,208.10
  6. Step 6: Final answer
    x = 107,667.19

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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.