Home / 150,889.64-208,237.86-87,243.56

Finding the Fourth Proportional to 150,889.64, 208,237.86 and 87,243.56

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Solution

The fourth proportional to 150,889.64, 208,237.86 and 87,243.56 is: 120,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,889.64 : 208,237.86 = 87,243.56 : x
  2. Step 2: Convert to fraction form
    150,889.64/208,237.86 = 87,243.56/x
  3. Step 3: Cross multiply
    150,889.64x = 208,237.86 × 87,243.56
  4. Step 4: Simplify right side
    150,889.64x = 18,167,412,233.18
  5. Step 5: Solve for x
    x = 18,167,412,233.18/150,889.64
  6. Step 6: Final answer
    x = 120,401.99

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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.