Home / 201,522.43-278,140.72-115,539.17

Finding the Fourth Proportional to 201,522.43, 278,140.72 and 115,539.17

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Solution

The fourth proportional to 201,522.43, 278,140.72 and 115,539.17 is: 159,466.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,522.43 : 278,140.72 = 115,539.17 : x
  2. Step 2: Convert to fraction form
    201,522.43/278,140.72 = 115,539.17/x
  3. Step 3: Cross multiply
    201,522.43x = 278,140.72 × 115,539.17
  4. Step 4: Simplify right side
    201,522.43x = 32,136,147,932.00
  5. Step 5: Solve for x
    x = 32,136,147,932.00/201,522.43
  6. Step 6: Final answer
    x = 159,466.86

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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.