Home / 190,241.19-285,380.66-70,329.55

Finding the Fourth Proportional to 190,241.19, 285,380.66 and 70,329.55

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Solution

The fourth proportional to 190,241.19, 285,380.66 and 70,329.55 is: 105,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,241.19 : 285,380.66 = 70,329.55 : x
  2. Step 2: Convert to fraction form
    190,241.19/285,380.66 = 70,329.55/x
  3. Step 3: Cross multiply
    190,241.19x = 285,380.66 × 70,329.55
  4. Step 4: Simplify right side
    190,241.19x = 20,070,693,396.50
  5. Step 5: Solve for x
    x = 20,070,693,396.50/190,241.19
  6. Step 6: Final answer
    x = 105,501.30

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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.