Home / 139,867.11-193,014.18-76,205.37

Finding the Fourth Proportional to 139,867.11, 193,014.18 and 76,205.37

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Solution

The fourth proportional to 139,867.11, 193,014.18 and 76,205.37 is: 105,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,867.11 : 193,014.18 = 76,205.37 : x
  2. Step 2: Convert to fraction form
    139,867.11/193,014.18 = 76,205.37/x
  3. Step 3: Cross multiply
    139,867.11x = 193,014.18 × 76,205.37
  4. Step 4: Simplify right side
    139,867.11x = 14,708,717,002.15
  5. Step 5: Solve for x
    x = 14,708,717,002.15/139,867.11
  6. Step 6: Final answer
    x = 105,162.09

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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.