Home / 190,050.68-285,445.07-139,932.83

Finding the Fourth Proportional to 190,050.68, 285,445.07 and 139,932.83

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Solution

The fourth proportional to 190,050.68, 285,445.07 and 139,932.83 is: 210,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,050.68 : 285,445.07 = 139,932.83 : x
  2. Step 2: Convert to fraction form
    190,050.68/285,445.07 = 139,932.83/x
  3. Step 3: Cross multiply
    190,050.68x = 285,445.07 × 139,932.83
  4. Step 4: Simplify right side
    190,050.68x = 39,943,134,327.76
  5. Step 5: Solve for x
    x = 39,943,134,327.76/190,050.68
  6. Step 6: Final answer
    x = 210,170.97

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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.