Home / 138,575.03-191,233.82-74,912.82

Finding the Fourth Proportional to 138,575.03, 191,233.82 and 74,912.82

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Solution

The fourth proportional to 138,575.03, 191,233.82 and 74,912.82 is: 103,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,575.03 : 191,233.82 = 74,912.82 : x
  2. Step 2: Convert to fraction form
    138,575.03/191,233.82 = 74,912.82/x
  3. Step 3: Cross multiply
    138,575.03x = 191,233.82 × 74,912.82
  4. Step 4: Simplify right side
    138,575.03x = 14,325,864,361.01
  5. Step 5: Solve for x
    x = 14,325,864,361.01/138,575.03
  6. Step 6: Final answer
    x = 103,379.84

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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.