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Finding the Fourth Proportional to 139,674.76, 209,512.14 and 114,998.92

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Solution

The fourth proportional to 139,674.76, 209,512.14 and 114,998.92 is: 172,498.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,674.76 : 209,512.14 = 114,998.92 : x
  2. Step 2: Convert to fraction form
    139,674.76/209,512.14 = 114,998.92/x
  3. Step 3: Cross multiply
    139,674.76x = 209,512.14 × 114,998.92
  4. Step 4: Simplify right side
    139,674.76x = 24,093,669,826.89
  5. Step 5: Solve for x
    x = 24,093,669,826.89/139,674.76
  6. Step 6: Final answer
    x = 172,498.38

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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.