Home / 401,738.63-602,642.97-131,785.83

Finding the Fourth Proportional to 401,738.63, 602,642.97 and 131,785.83

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Solution

The fourth proportional to 401,738.63, 602,642.97 and 131,785.83 is: 197,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,738.63 : 602,642.97 = 131,785.83 : x
  2. Step 2: Convert to fraction form
    401,738.63/602,642.97 = 131,785.83/x
  3. Step 3: Cross multiply
    401,738.63x = 602,642.97 × 131,785.83
  4. Step 4: Simplify right side
    401,738.63x = 79,419,803,995.12
  5. Step 5: Solve for x
    x = 79,419,803,995.12/401,738.63
  6. Step 6: Final answer
    x = 197,690.23

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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.