Home / 136,268.96-187,998.60-100,544.72

Finding the Fourth Proportional to 136,268.96, 187,998.60 and 100,544.72

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Solution

The fourth proportional to 136,268.96, 187,998.60 and 100,544.72 is: 138,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,268.96 : 187,998.60 = 100,544.72 : x
  2. Step 2: Convert to fraction form
    136,268.96/187,998.60 = 100,544.72/x
  3. Step 3: Cross multiply
    136,268.96x = 187,998.60 × 100,544.72
  4. Step 4: Simplify right side
    136,268.96x = 18,902,266,597.39
  5. Step 5: Solve for x
    x = 18,902,266,597.39/136,268.96
  6. Step 6: Final answer
    x = 138,712.93

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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.