Home / 190,486.12-285,751.26-72,245.80

Finding the Fourth Proportional to 190,486.12, 285,751.26 and 72,245.80

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Solution

The fourth proportional to 190,486.12, 285,751.26 and 72,245.80 is: 108,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,486.12 : 285,751.26 = 72,245.80 : x
  2. Step 2: Convert to fraction form
    190,486.12/285,751.26 = 72,245.80/x
  3. Step 3: Cross multiply
    190,486.12x = 285,751.26 × 72,245.80
  4. Step 4: Simplify right side
    190,486.12x = 20,644,328,379.71
  5. Step 5: Solve for x
    x = 20,644,328,379.71/190,486.12
  6. Step 6: Final answer
    x = 108,377.07

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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.