Home / 454,345.45-681,525.30-134,529.78

Finding the Fourth Proportional to 454,345.45, 681,525.30 and 134,529.78

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Solution

The fourth proportional to 454,345.45, 681,525.30 and 134,529.78 is: 201,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,345.45 : 681,525.30 = 134,529.78 : x
  2. Step 2: Convert to fraction form
    454,345.45/681,525.30 = 134,529.78/x
  3. Step 3: Cross multiply
    454,345.45x = 681,525.30 × 134,529.78
  4. Step 4: Simplify right side
    454,345.45x = 91,685,448,673.43
  5. Step 5: Solve for x
    x = 91,685,448,673.43/454,345.45
  6. Step 6: Final answer
    x = 201,796.78

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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.