Home / 145,028.20-200,342.82-111,919.72

Finding the Fourth Proportional to 145,028.20, 200,342.82 and 111,919.72

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Solution

The fourth proportional to 145,028.20, 200,342.82 and 111,919.72 is: 154,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,028.20 : 200,342.82 = 111,919.72 : x
  2. Step 2: Convert to fraction form
    145,028.20/200,342.82 = 111,919.72/x
  3. Step 3: Cross multiply
    145,028.20x = 200,342.82 × 111,919.72
  4. Step 4: Simplify right side
    145,028.20x = 22,422,312,318.41
  5. Step 5: Solve for x
    x = 22,422,312,318.41/145,028.20
  6. Step 6: Final answer
    x = 154,606.57

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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.