Home / 188,860.28-260,628.18-103,977.40

Finding the Fourth Proportional to 188,860.28, 260,628.18 and 103,977.40

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Solution

The fourth proportional to 188,860.28, 260,628.18 and 103,977.40 is: 143,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,860.28 : 260,628.18 = 103,977.40 : x
  2. Step 2: Convert to fraction form
    188,860.28/260,628.18 = 103,977.40/x
  3. Step 3: Cross multiply
    188,860.28x = 260,628.18 × 103,977.40
  4. Step 4: Simplify right side
    188,860.28x = 27,099,440,523.13
  5. Step 5: Solve for x
    x = 27,099,440,523.13/188,860.28
  6. Step 6: Final answer
    x = 143,489.36

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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.