Home / 134,936.04-186,190.74-78,337.56

Finding the Fourth Proportional to 134,936.04, 186,190.74 and 78,337.56

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Solution

The fourth proportional to 134,936.04, 186,190.74 and 78,337.56 is: 108,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,936.04 : 186,190.74 = 78,337.56 : x
  2. Step 2: Convert to fraction form
    134,936.04/186,190.74 = 78,337.56/x
  3. Step 3: Cross multiply
    134,936.04x = 186,190.74 × 78,337.56
  4. Step 4: Simplify right side
    134,936.04x = 14,585,728,266.19
  5. Step 5: Solve for x
    x = 14,585,728,266.19/134,936.04
  6. Step 6: Final answer
    x = 108,093.64

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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.