Home / 104,075.30-143,627.39-63,781.28

Finding the Fourth Proportional to 104,075.30, 143,627.39 and 63,781.28

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Solution

The fourth proportional to 104,075.30, 143,627.39 and 63,781.28 is: 88,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,075.30 : 143,627.39 = 63,781.28 : x
  2. Step 2: Convert to fraction form
    104,075.30/143,627.39 = 63,781.28/x
  3. Step 3: Cross multiply
    104,075.30x = 143,627.39 × 63,781.28
  4. Step 4: Simplify right side
    104,075.30x = 9,160,738,856.84
  5. Step 5: Solve for x
    x = 9,160,738,856.84/104,075.30
  6. Step 6: Final answer
    x = 88,020.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.