Home / 139,566.35-209,318.09-39,724.34

Finding the Fourth Proportional to 139,566.35, 209,318.09 and 39,724.34

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Solution

The fourth proportional to 139,566.35, 209,318.09 and 39,724.34 is: 59,577.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,566.35 : 209,318.09 = 39,724.34 : x
  2. Step 2: Convert to fraction form
    139,566.35/209,318.09 = 39,724.34/x
  3. Step 3: Cross multiply
    139,566.35x = 209,318.09 × 39,724.34
  4. Step 4: Simplify right side
    139,566.35x = 8,315,021,953.55
  5. Step 5: Solve for x
    x = 8,315,021,953.55/139,566.35
  6. Step 6: Final answer
    x = 59,577.55

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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.