Home / 150,913.56-208,260.72-87,255.46

Finding the Fourth Proportional to 150,913.56, 208,260.72 and 87,255.46

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Solution

The fourth proportional to 150,913.56, 208,260.72 and 87,255.46 is: 120,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,913.56 : 208,260.72 = 87,255.46 : x
  2. Step 2: Convert to fraction form
    150,913.56/208,260.72 = 87,255.46/x
  3. Step 3: Cross multiply
    150,913.56x = 208,260.72 × 87,255.46
  4. Step 4: Simplify right side
    150,913.56x = 18,171,884,923.53
  5. Step 5: Solve for x
    x = 18,171,884,923.53/150,913.56
  6. Step 6: Final answer
    x = 120,412.54

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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.