Home / 188,670.28-260,369.02-103,787.34

Finding the Fourth Proportional to 188,670.28, 260,369.02 and 103,787.34

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Solution

The fourth proportional to 188,670.28, 260,369.02 and 103,787.34 is: 143,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,670.28 : 260,369.02 = 103,787.34 : x
  2. Step 2: Convert to fraction form
    188,670.28/260,369.02 = 103,787.34/x
  3. Step 3: Cross multiply
    188,670.28x = 260,369.02 × 103,787.34
  4. Step 4: Simplify right side
    188,670.28x = 27,023,008,004.21
  5. Step 5: Solve for x
    x = 27,023,008,004.21/188,670.28
  6. Step 6: Final answer
    x = 143,228.75

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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.