Home / 133,541.53-184,286.81-76,180.75

Finding the Fourth Proportional to 133,541.53, 184,286.81 and 76,180.75

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Solution

The fourth proportional to 133,541.53, 184,286.81 and 76,180.75 is: 105,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,541.53 : 184,286.81 = 76,180.75 : x
  2. Step 2: Convert to fraction form
    133,541.53/184,286.81 = 76,180.75/x
  3. Step 3: Cross multiply
    133,541.53x = 184,286.81 × 76,180.75
  4. Step 4: Simplify right side
    133,541.53x = 14,039,106,479.47
  5. Step 5: Solve for x
    x = 14,039,106,479.47/133,541.53
  6. Step 6: Final answer
    x = 105,129.15

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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.