Home / 123,968.28-171,075.38-67,379.66

Finding the Fourth Proportional to 123,968.28, 171,075.38 and 67,379.66

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Solution

The fourth proportional to 123,968.28, 171,075.38 and 67,379.66 is: 92,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,968.28 : 171,075.38 = 67,379.66 : x
  2. Step 2: Convert to fraction form
    123,968.28/171,075.38 = 67,379.66/x
  3. Step 3: Cross multiply
    123,968.28x = 171,075.38 × 67,379.66
  4. Step 4: Simplify right side
    123,968.28x = 11,527,000,388.03
  5. Step 5: Solve for x
    x = 11,527,000,388.03/123,968.28
  6. Step 6: Final answer
    x = 92,983.46

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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.