Home / 201,940.23-278,666.68-111,278.14

Finding the Fourth Proportional to 201,940.23, 278,666.68 and 111,278.14

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Solution

The fourth proportional to 201,940.23, 278,666.68 and 111,278.14 is: 153,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,940.23 : 278,666.68 = 111,278.14 : x
  2. Step 2: Convert to fraction form
    201,940.23/278,666.68 = 111,278.14/x
  3. Step 3: Cross multiply
    201,940.23x = 278,666.68 × 111,278.14
  4. Step 4: Simplify right side
    201,940.23x = 31,009,509,830.38
  5. Step 5: Solve for x
    x = 31,009,509,830.38/201,940.23
  6. Step 6: Final answer
    x = 153,557.87

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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.