Home / 145,622.94-200,932.83-81,947.22

Finding the Fourth Proportional to 145,622.94, 200,932.83 and 81,947.22

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Solution

The fourth proportional to 145,622.94, 200,932.83 and 81,947.22 is: 113,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622.94 : 200,932.83 = 81,947.22 : x
  2. Step 2: Convert to fraction form
    145,622.94/200,932.83 = 81,947.22/x
  3. Step 3: Cross multiply
    145,622.94x = 200,932.83 × 81,947.22
  4. Step 4: Simplify right side
    145,622.94x = 16,465,886,825.23
  5. Step 5: Solve for x
    x = 16,465,886,825.23/145,622.94
  6. Step 6: Final answer
    x = 113,072.07

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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.