Home / 136,904.01-188,923.16-79,548.12

Finding the Fourth Proportional to 136,904.01, 188,923.16 and 79,548.12

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Solution

The fourth proportional to 136,904.01, 188,923.16 and 79,548.12 is: 109,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,904.01 : 188,923.16 = 79,548.12 : x
  2. Step 2: Convert to fraction form
    136,904.01/188,923.16 = 79,548.12/x
  3. Step 3: Cross multiply
    136,904.01x = 188,923.16 × 79,548.12
  4. Step 4: Simplify right side
    136,904.01x = 15,028,481,804.72
  5. Step 5: Solve for x
    x = 15,028,481,804.72/136,904.01
  6. Step 6: Final answer
    x = 109,773.86

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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.