Home / 123,921.96-171,013.86-67,334.28

Finding the Fourth Proportional to 123,921.96, 171,013.86 and 67,334.28

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Solution

The fourth proportional to 123,921.96, 171,013.86 and 67,334.28 is: 92,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,921.96 : 171,013.86 = 67,334.28 : x
  2. Step 2: Convert to fraction form
    123,921.96/171,013.86 = 67,334.28/x
  3. Step 3: Cross multiply
    123,921.96x = 171,013.86 × 67,334.28
  4. Step 4: Simplify right side
    123,921.96x = 11,515,095,133.12
  5. Step 5: Solve for x
    x = 11,515,095,133.12/123,921.96
  6. Step 6: Final answer
    x = 92,922.15

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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.