Home / 209,147.81-288,517.73-136,593.17

Finding the Fourth Proportional to 209,147.81, 288,517.73 and 136,593.17

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Solution

The fourth proportional to 209,147.81, 288,517.73 and 136,593.17 is: 188,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,147.81 : 288,517.73 = 136,593.17 : x
  2. Step 2: Convert to fraction form
    209,147.81/288,517.73 = 136,593.17/x
  3. Step 3: Cross multiply
    209,147.81x = 288,517.73 × 136,593.17
  4. Step 4: Simplify right side
    209,147.81x = 39,409,551,034.29
  5. Step 5: Solve for x
    x = 39,409,551,034.29/209,147.81
  6. Step 6: Final answer
    x = 188,429.18

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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.