Home / 201,966.53-278,701.13-111,317.50

Finding the Fourth Proportional to 201,966.53, 278,701.13 and 111,317.50

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Solution

The fourth proportional to 201,966.53, 278,701.13 and 111,317.50 is: 153,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,966.53 : 278,701.13 = 111,317.50 : x
  2. Step 2: Convert to fraction form
    201,966.53/278,701.13 = 111,317.50/x
  3. Step 3: Cross multiply
    201,966.53x = 278,701.13 × 111,317.50
  4. Step 4: Simplify right side
    201,966.53x = 31,024,311,785.43
  5. Step 5: Solve for x
    x = 31,024,311,785.43/201,966.53
  6. Step 6: Final answer
    x = 153,611.16

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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.