Home / 190,197.60-285,094.08-71,818.56

Finding the Fourth Proportional to 190,197.60, 285,094.08 and 71,818.56

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Solution

The fourth proportional to 190,197.60, 285,094.08 and 71,818.56 is: 107,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,197.60 : 285,094.08 = 71,818.56 : x
  2. Step 2: Convert to fraction form
    190,197.60/285,094.08 = 71,818.56/x
  3. Step 3: Cross multiply
    190,197.60x = 285,094.08 × 71,818.56
  4. Step 4: Simplify right side
    190,197.60x = 20,475,046,290.12
  5. Step 5: Solve for x
    x = 20,475,046,290.12/190,197.60
  6. Step 6: Final answer
    x = 107,651.44

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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.