Home / 448,745.87-673,113.62-128,905.58

Finding the Fourth Proportional to 448,745.87, 673,113.62 and 128,905.58

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Solution

The fourth proportional to 448,745.87, 673,113.62 and 128,905.58 is: 193,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,745.87 : 673,113.62 = 128,905.58 : x
  2. Step 2: Convert to fraction form
    448,745.87/673,113.62 = 128,905.58/x
  3. Step 3: Cross multiply
    448,745.87x = 673,113.62 × 128,905.58
  4. Step 4: Simplify right side
    448,745.87x = 86,768,102,846.83
  5. Step 5: Solve for x
    x = 86,768,102,846.83/448,745.87
  6. Step 6: Final answer
    x = 193,356.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.