Home / 201,815.31-278,492.58-111,166.19

Finding the Fourth Proportional to 201,815.31, 278,492.58 and 111,166.19

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Solution

The fourth proportional to 201,815.31, 278,492.58 and 111,166.19 is: 153,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,815.31 : 278,492.58 = 111,166.19 : x
  2. Step 2: Convert to fraction form
    201,815.31/278,492.58 = 111,166.19/x
  3. Step 3: Cross multiply
    201,815.31x = 278,492.58 × 111,166.19
  4. Step 4: Simplify right side
    201,815.31x = 30,958,958,713.75
  5. Step 5: Solve for x
    x = 30,958,958,713.75/201,815.31
  6. Step 6: Final answer
    x = 153,402.43

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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.