Home / 190,468.80-285,824.70-90,741.60

Finding the Fourth Proportional to 190,468.80, 285,824.70 and 90,741.60

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Solution

The fourth proportional to 190,468.80, 285,824.70 and 90,741.60 is: 136,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,468.80 : 285,824.70 = 90,741.60 : x
  2. Step 2: Convert to fraction form
    190,468.80/285,824.70 = 90,741.60/x
  3. Step 3: Cross multiply
    190,468.80x = 285,824.70 × 90,741.60
  4. Step 4: Simplify right side
    190,468.80x = 25,936,190,597.52
  5. Step 5: Solve for x
    x = 25,936,190,597.52/190,468.80
  6. Step 6: Final answer
    x = 136,170.28

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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.