Home / 209,479.23-314,268.05-69,237.86

Finding the Fourth Proportional to 209,479.23, 314,268.05 and 69,237.86

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Solution

The fourth proportional to 209,479.23, 314,268.05 and 69,237.86 is: 103,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,479.23 : 314,268.05 = 69,237.86 : x
  2. Step 2: Convert to fraction form
    209,479.23/314,268.05 = 69,237.86/x
  3. Step 3: Cross multiply
    209,479.23x = 314,268.05 × 69,237.86
  4. Step 4: Simplify right side
    209,479.23x = 21,759,245,850.13
  5. Step 5: Solve for x
    x = 21,759,245,850.13/209,479.23
  6. Step 6: Final answer
    x = 103,873.05

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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.