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Finding the Fourth Proportional to 103,851.32, 155,710.41 and 43,863.54

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Solution

The fourth proportional to 103,851.32, 155,710.41 and 43,863.54 is: 65,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,851.32 : 155,710.41 = 43,863.54 : x
  2. Step 2: Convert to fraction form
    103,851.32/155,710.41 = 43,863.54/x
  3. Step 3: Cross multiply
    103,851.32x = 155,710.41 × 43,863.54
  4. Step 4: Simplify right side
    103,851.32x = 6,830,009,797.45
  5. Step 5: Solve for x
    x = 6,830,009,797.45/103,851.32
  6. Step 6: Final answer
    x = 65,767.20

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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.