Home / 150,858.48-208,161.56-87,183.98

Finding the Fourth Proportional to 150,858.48, 208,161.56 and 87,183.98

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Solution

The fourth proportional to 150,858.48, 208,161.56 and 87,183.98 is: 120,300.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,858.48 : 208,161.56 = 87,183.98 : x
  2. Step 2: Convert to fraction form
    150,858.48/208,161.56 = 87,183.98/x
  3. Step 3: Cross multiply
    150,858.48x = 208,161.56 × 87,183.98
  4. Step 4: Simplify right side
    150,858.48x = 18,148,353,283.81
  5. Step 5: Solve for x
    x = 18,148,353,283.81/150,858.48
  6. Step 6: Final answer
    x = 120,300.52

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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.