Home / 190,211.33-262,499.55-105,328.39

Finding the Fourth Proportional to 190,211.33, 262,499.55 and 105,328.39

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Solution

The fourth proportional to 190,211.33, 262,499.55 and 105,328.39 is: 145,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,211.33 : 262,499.55 = 105,328.39 : x
  2. Step 2: Convert to fraction form
    190,211.33/262,499.55 = 105,328.39/x
  3. Step 3: Cross multiply
    190,211.33x = 262,499.55 × 105,328.39
  4. Step 4: Simplify right side
    190,211.33x = 27,648,654,977.22
  5. Step 5: Solve for x
    x = 27,648,654,977.22/190,211.33
  6. Step 6: Final answer
    x = 145,357.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.