Home / 190,090.12-285,234.46-137,930.12

Finding the Fourth Proportional to 190,090.12, 285,234.46 and 137,930.12

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Solution

The fourth proportional to 190,090.12, 285,234.46 and 137,930.12 is: 206,967.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,090.12 : 285,234.46 = 137,930.12 : x
  2. Step 2: Convert to fraction form
    190,090.12/285,234.46 = 137,930.12/x
  3. Step 3: Cross multiply
    190,090.12x = 285,234.46 × 137,930.12
  4. Step 4: Simplify right side
    190,090.12x = 39,342,423,295.94
  5. Step 5: Solve for x
    x = 39,342,423,295.94/190,090.12
  6. Step 6: Final answer
    x = 206,967.22

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1.5x scale

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.