Home / 189,036.45-260,511.53-135,228.15

Finding the Fourth Proportional to 189,036.45, 260,511.53 and 135,228.15

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Solution

The fourth proportional to 189,036.45, 260,511.53 and 135,228.15 is: 186,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,036.45 : 260,511.53 = 135,228.15 : x
  2. Step 2: Convert to fraction form
    189,036.45/260,511.53 = 135,228.15/x
  3. Step 3: Cross multiply
    189,036.45x = 260,511.53 × 135,228.15
  4. Step 4: Simplify right side
    189,036.45x = 35,228,491,579.43
  5. Step 5: Solve for x
    x = 35,228,491,579.43/189,036.45
  6. Step 6: Final answer
    x = 186,358.19

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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.