Home / 401,724.59-602,163.21-131,782.23

Finding the Fourth Proportional to 401,724.59, 602,163.21 and 131,782.23

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Solution

The fourth proportional to 401,724.59, 602,163.21 and 131,782.23 is: 197,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,724.59 : 602,163.21 = 131,782.23 : x
  2. Step 2: Convert to fraction form
    401,724.59/602,163.21 = 131,782.23/x
  3. Step 3: Cross multiply
    401,724.59x = 602,163.21 × 131,782.23
  4. Step 4: Simplify right side
    401,724.59x = 79,354,411,131.94
  5. Step 5: Solve for x
    x = 79,354,411,131.94/401,724.59
  6. Step 6: Final answer
    x = 197,534.37

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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.