Home / 139,876.13-209,815.65-111,973.56

Finding the Fourth Proportional to 139,876.13, 209,815.65 and 111,973.56

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Solution

The fourth proportional to 139,876.13, 209,815.65 and 111,973.56 is: 167,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,876.13 : 209,815.65 = 111,973.56 : x
  2. Step 2: Convert to fraction form
    139,876.13/209,815.65 = 111,973.56/x
  3. Step 3: Cross multiply
    139,876.13x = 209,815.65 × 111,973.56
  4. Step 4: Simplify right side
    139,876.13x = 23,493,804,487.41
  5. Step 5: Solve for x
    x = 23,493,804,487.41/139,876.13
  6. Step 6: Final answer
    x = 167,961.50

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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.