Home / 147,571.83-203,643.09-87,162.03

Finding the Fourth Proportional to 147,571.83, 203,643.09 and 87,162.03

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Solution

The fourth proportional to 147,571.83, 203,643.09 and 87,162.03 is: 120,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,571.83 : 203,643.09 = 87,162.03 : x
  2. Step 2: Convert to fraction form
    147,571.83/203,643.09 = 87,162.03/x
  3. Step 3: Cross multiply
    147,571.83x = 203,643.09 × 87,162.03
  4. Step 4: Simplify right side
    147,571.83x = 17,749,945,119.87
  5. Step 5: Solve for x
    x = 17,749,945,119.87/147,571.83
  6. Step 6: Final answer
    x = 120,280.04

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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.