Home / 149,280.45-205,997.64-82,212.45

Finding the Fourth Proportional to 149,280.45, 205,997.64 and 82,212.45

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Solution

The fourth proportional to 149,280.45, 205,997.64 and 82,212.45 is: 113,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,280.45 : 205,997.64 = 82,212.45 : x
  2. Step 2: Convert to fraction form
    149,280.45/205,997.64 = 82,212.45/x
  3. Step 3: Cross multiply
    149,280.45x = 205,997.64 × 82,212.45
  4. Step 4: Simplify right side
    149,280.45x = 16,935,570,678.62
  5. Step 5: Solve for x
    x = 16,935,570,678.62/149,280.45
  6. Step 6: Final answer
    x = 113,448.01

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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.