Home / 123,491.32-170,418.84-66,902.69

Finding the Fourth Proportional to 123,491.32, 170,418.84 and 66,902.69

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Solution

The fourth proportional to 123,491.32, 170,418.84 and 66,902.69 is: 92,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.32 : 170,418.84 = 66,902.69 : x
  2. Step 2: Convert to fraction form
    123,491.32/170,418.84 = 66,902.69/x
  3. Step 3: Cross multiply
    123,491.32x = 170,418.84 × 66,902.69
  4. Step 4: Simplify right side
    123,491.32x = 11,401,478,997.84
  5. Step 5: Solve for x
    x = 11,401,478,997.84/123,491.32
  6. Step 6: Final answer
    x = 92,326.16

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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.