Home / 147,477.21-203,470.43-87,027.45

Finding the Fourth Proportional to 147,477.21, 203,470.43 and 87,027.45

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Solution

The fourth proportional to 147,477.21, 203,470.43 and 87,027.45 is: 120,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,477.21 : 203,470.43 = 87,027.45 : x
  2. Step 2: Convert to fraction form
    147,477.21/203,470.43 = 87,027.45/x
  3. Step 3: Cross multiply
    147,477.21x = 203,470.43 × 87,027.45
  4. Step 4: Simplify right side
    147,477.21x = 17,707,512,238.17
  5. Step 5: Solve for x
    x = 17,707,512,238.17/147,477.21
  6. Step 6: Final answer
    x = 120,069.48

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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.