Home / 139,992.08-210,086.52-126,607.64

Finding the Fourth Proportional to 139,992.08, 210,086.52 and 126,607.64

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Solution

The fourth proportional to 139,992.08, 210,086.52 and 126,607.64 is: 190,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,992.08 : 210,086.52 = 126,607.64 : x
  2. Step 2: Convert to fraction form
    139,992.08/210,086.52 = 126,607.64/x
  3. Step 3: Cross multiply
    139,992.08x = 210,086.52 × 126,607.64
  4. Step 4: Simplify right side
    139,992.08x = 26,598,558,493.01
  5. Step 5: Solve for x
    x = 26,598,558,493.01/139,992.08
  6. Step 6: Final answer
    x = 190,000.45

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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.