Home / 190,833.21-286,206.08-85,682.25

Finding the Fourth Proportional to 190,833.21, 286,206.08 and 85,682.25

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Solution

The fourth proportional to 190,833.21, 286,206.08 and 85,682.25 is: 128,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,833.21 : 286,206.08 = 85,682.25 : x
  2. Step 2: Convert to fraction form
    190,833.21/286,206.08 = 85,682.25/x
  3. Step 3: Cross multiply
    190,833.21x = 286,206.08 × 85,682.25
  4. Step 4: Simplify right side
    190,833.21x = 24,522,780,469.67
  5. Step 5: Solve for x
    x = 24,522,780,469.67/190,833.21
  6. Step 6: Final answer
    x = 128,503.74

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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.