Home / 209,766.22-314,399.45-120,835.51

Finding the Fourth Proportional to 209,766.22, 314,399.45 and 120,835.51

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Solution

The fourth proportional to 209,766.22, 314,399.45 and 120,835.51 is: 181,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,766.22 : 314,399.45 = 120,835.51 : x
  2. Step 2: Convert to fraction form
    209,766.22/314,399.45 = 120,835.51/x
  3. Step 3: Cross multiply
    209,766.22x = 314,399.45 × 120,835.51
  4. Step 4: Simplify right side
    209,766.22x = 37,990,617,280.29
  5. Step 5: Solve for x
    x = 37,990,617,280.29/209,766.22
  6. Step 6: Final answer
    x = 181,109.32

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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.