Home / 103,787.01-155,680.65-28,907.37

Finding the Fourth Proportional to 103,787.01, 155,680.65 and 28,907.37

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Solution

The fourth proportional to 103,787.01, 155,680.65 and 28,907.37 is: 43,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,787.01 : 155,680.65 = 28,907.37 : x
  2. Step 2: Convert to fraction form
    103,787.01/155,680.65 = 28,907.37/x
  3. Step 3: Cross multiply
    103,787.01x = 155,680.65 × 28,907.37
  4. Step 4: Simplify right side
    103,787.01x = 4,500,318,151.39
  5. Step 5: Solve for x
    x = 4,500,318,151.39/103,787.01
  6. Step 6: Final answer
    x = 43,361.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.