Home / 135,463.68-186,941.22-81,738.33

Finding the Fourth Proportional to 135,463.68, 186,941.22 and 81,738.33

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Solution

The fourth proportional to 135,463.68, 186,941.22 and 81,738.33 is: 112,799.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,463.68 : 186,941.22 = 81,738.33 : x
  2. Step 2: Convert to fraction form
    135,463.68/186,941.22 = 81,738.33/x
  3. Step 3: Cross multiply
    135,463.68x = 186,941.22 × 81,738.33
  4. Step 4: Simplify right side
    135,463.68x = 15,280,263,130.96
  5. Step 5: Solve for x
    x = 15,280,263,130.96/135,463.68
  6. Step 6: Final answer
    x = 112,799.70

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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.