Home / 209,039.56-288,594.29-137,627.19

Finding the Fourth Proportional to 209,039.56, 288,594.29 and 137,627.19

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Solution

The fourth proportional to 209,039.56, 288,594.29 and 137,627.19 is: 190,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,039.56 : 288,594.29 = 137,627.19 : x
  2. Step 2: Convert to fraction form
    209,039.56/288,594.29 = 137,627.19/x
  3. Step 3: Cross multiply
    209,039.56x = 288,594.29 × 137,627.19
  4. Step 4: Simplify right side
    209,039.56x = 39,718,421,182.75
  5. Step 5: Solve for x
    x = 39,718,421,182.75/209,039.56
  6. Step 6: Final answer
    x = 190,004.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.