Home / 209,106.57-288,039.42-168,707.28

Finding the Fourth Proportional to 209,106.57, 288,039.42 and 168,707.28

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Solution

The fourth proportional to 209,106.57, 288,039.42 and 168,707.28 is: 232,390.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,106.57 : 288,039.42 = 168,707.28 : x
  2. Step 2: Convert to fraction form
    209,106.57/288,039.42 = 168,707.28/x
  3. Step 3: Cross multiply
    209,106.57x = 288,039.42 × 168,707.28
  4. Step 4: Simplify right side
    209,106.57x = 48,594,347,080.98
  5. Step 5: Solve for x
    x = 48,594,347,080.98/209,106.57
  6. Step 6: Final answer
    x = 232,390.34

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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.