Home / 123,961.51-171,066.91-67,372.89

Finding the Fourth Proportional to 123,961.51, 171,066.91 and 67,372.89

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Solution

The fourth proportional to 123,961.51, 171,066.91 and 67,372.89 is: 92,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,961.51 : 171,066.91 = 67,372.89 : x
  2. Step 2: Convert to fraction form
    123,961.51/171,066.91 = 67,372.89/x
  3. Step 3: Cross multiply
    123,961.51x = 171,066.91 × 67,372.89
  4. Step 4: Simplify right side
    123,961.51x = 11,525,271,773.21
  5. Step 5: Solve for x
    x = 11,525,271,773.21/123,961.51
  6. Step 6: Final answer
    x = 92,974.60

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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.