Home / 201,634.17-278,139.84-126,051.45

Finding the Fourth Proportional to 201,634.17, 278,139.84 and 126,051.45

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Solution

The fourth proportional to 201,634.17, 278,139.84 and 126,051.45 is: 173,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,634.17 : 278,139.84 = 126,051.45 : x
  2. Step 2: Convert to fraction form
    201,634.17/278,139.84 = 126,051.45/x
  3. Step 3: Cross multiply
    201,634.17x = 278,139.84 × 126,051.45
  4. Step 4: Simplify right side
    201,634.17x = 35,059,928,744.07
  5. Step 5: Solve for x
    x = 35,059,928,744.07/201,634.17
  6. Step 6: Final answer
    x = 173,878.91

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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.