Home / 209,688.20-314,525.61-124,880.79

Finding the Fourth Proportional to 209,688.20, 314,525.61 and 124,880.79

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Solution

The fourth proportional to 209,688.20, 314,525.61 and 124,880.79 is: 187,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,688.20 : 314,525.61 = 124,880.79 : x
  2. Step 2: Convert to fraction form
    209,688.20/314,525.61 = 124,880.79/x
  3. Step 3: Cross multiply
    209,688.20x = 314,525.61 × 124,880.79
  4. Step 4: Simplify right side
    209,688.20x = 39,278,206,652.03
  5. Step 5: Solve for x
    x = 39,278,206,652.03/209,688.20
  6. Step 6: Final answer
    x = 187,317.20

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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.