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Finding the Fourth Proportional to 103,075.76, 154,516.66 and 55,619.73

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Solution

The fourth proportional to 103,075.76, 154,516.66 and 55,619.73 is: 83,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,075.76 : 154,516.66 = 55,619.73 : x
  2. Step 2: Convert to fraction form
    103,075.76/154,516.66 = 55,619.73/x
  3. Step 3: Cross multiply
    103,075.76x = 154,516.66 × 55,619.73
  4. Step 4: Simplify right side
    103,075.76x = 8,594,175,083.51
  5. Step 5: Solve for x
    x = 8,594,175,083.51/103,075.76
  6. Step 6: Final answer
    x = 83,377.27

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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.