Home / 399,850.09-599,766.44-129,986.93

Finding the Fourth Proportional to 399,850.09, 599,766.44 and 129,986.93

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Solution

The fourth proportional to 399,850.09, 599,766.44 and 129,986.93 is: 194,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,850.09 : 599,766.44 = 129,986.93 : x
  2. Step 2: Convert to fraction form
    399,850.09/599,766.44 = 129,986.93/x
  3. Step 3: Cross multiply
    399,850.09x = 599,766.44 × 129,986.93
  4. Step 4: Simplify right side
    399,850.09x = 77,961,799,102.11
  5. Step 5: Solve for x
    x = 77,961,799,102.11/399,850.09
  6. Step 6: Final answer
    x = 194,977.57

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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.