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Finding the Fourth Proportional to 139,992.58, 210,087.27 and 126,608.14

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Solution

The fourth proportional to 139,992.58, 210,087.27 and 126,608.14 is: 190,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,992.58 : 210,087.27 = 126,608.14 : x
  2. Step 2: Convert to fraction form
    139,992.58/210,087.27 = 126,608.14/x
  3. Step 3: Cross multiply
    139,992.58x = 210,087.27 × 126,608.14
  4. Step 4: Simplify right side
    139,992.58x = 26,598,758,492.38
  5. Step 5: Solve for x
    x = 26,598,758,492.38/139,992.58
  6. Step 6: Final answer
    x = 190,001.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.