Home / 110,629.20-165,943.80-102,075.60

Finding the Fourth Proportional to 110,629.20, 165,943.80 and 102,075.60

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Solution

The fourth proportional to 110,629.20, 165,943.80 and 102,075.60 is: 153,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,629.20 : 165,943.80 = 102,075.60 : x
  2. Step 2: Convert to fraction form
    110,629.20/165,943.80 = 102,075.60/x
  3. Step 3: Cross multiply
    110,629.20x = 165,943.80 × 102,075.60
  4. Step 4: Simplify right side
    110,629.20x = 16,938,812,951.28
  5. Step 5: Solve for x
    x = 16,938,812,951.28/110,629.20
  6. Step 6: Final answer
    x = 153,113.40

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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.