Home / 105,075.90-144,960.87-68,786.21

Finding the Fourth Proportional to 105,075.90, 144,960.87 and 68,786.21

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Solution

The fourth proportional to 105,075.90, 144,960.87 and 68,786.21 is: 94,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,075.90 : 144,960.87 = 68,786.21 : x
  2. Step 2: Convert to fraction form
    105,075.90/144,960.87 = 68,786.21/x
  3. Step 3: Cross multiply
    105,075.90x = 144,960.87 × 68,786.21
  4. Step 4: Simplify right side
    105,075.90x = 9,971,309,465.95
  5. Step 5: Solve for x
    x = 9,971,309,465.95/105,075.90
  6. Step 6: Final answer
    x = 94,896.26

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1.5x scale

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.