Home / 209,570.46-314,355.80-69,329.09

Finding the Fourth Proportional to 209,570.46, 314,355.80 and 69,329.09

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Solution

The fourth proportional to 209,570.46, 314,355.80 and 69,329.09 is: 103,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,570.46 : 314,355.80 = 69,329.09 : x
  2. Step 2: Convert to fraction form
    209,570.46/314,355.80 = 69,329.09/x
  3. Step 3: Cross multiply
    209,570.46x = 314,355.80 × 69,329.09
  4. Step 4: Simplify right side
    209,570.46x = 21,793,999,631.80
  5. Step 5: Solve for x
    x = 21,793,999,631.80/209,570.46
  6. Step 6: Final answer
    x = 103,993.66

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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.