Home / 145,614.36-200,914.57-81,928.92

Finding the Fourth Proportional to 145,614.36, 200,914.57 and 81,928.92

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Solution

The fourth proportional to 145,614.36, 200,914.57 and 81,928.92 is: 113,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,614.36 : 200,914.57 = 81,928.92 : x
  2. Step 2: Convert to fraction form
    145,614.36/200,914.57 = 81,928.92/x
  3. Step 3: Cross multiply
    145,614.36x = 200,914.57 × 81,928.92
  4. Step 4: Simplify right side
    145,614.36x = 16,460,713,732.36
  5. Step 5: Solve for x
    x = 16,460,713,732.36/145,614.36
  6. Step 6: Final answer
    x = 113,043.20

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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.