Home / 170,075.50-255,170.64-75,292.60

Finding the Fourth Proportional to 170,075.50, 255,170.64 and 75,292.60

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Solution

The fourth proportional to 170,075.50, 255,170.64 and 75,292.60 is: 112,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,075.50 : 255,170.64 = 75,292.60 : x
  2. Step 2: Convert to fraction form
    170,075.50/255,170.64 = 75,292.60/x
  3. Step 3: Cross multiply
    170,075.50x = 255,170.64 × 75,292.60
  4. Step 4: Simplify right side
    170,075.50x = 19,212,460,929.26
  5. Step 5: Solve for x
    x = 19,212,460,929.26/170,075.50
  6. Step 6: Final answer
    x = 112,964.31

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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.