Home / 139,724.21-209,584.24-34,543.15

Finding the Fourth Proportional to 139,724.21, 209,584.24 and 34,543.15

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Solution

The fourth proportional to 139,724.21, 209,584.24 and 34,543.15 is: 51,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,724.21 : 209,584.24 = 34,543.15 : x
  2. Step 2: Convert to fraction form
    139,724.21/209,584.24 = 34,543.15/x
  3. Step 3: Cross multiply
    139,724.21x = 209,584.24 × 34,543.15
  4. Step 4: Simplify right side
    139,724.21x = 7,239,699,839.96
  5. Step 5: Solve for x
    x = 7,239,699,839.96/139,724.21
  6. Step 6: Final answer
    x = 51,814.21

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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.