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Finding the Fourth Proportional to 125,953.92, 188,009.37 and 111,007.67

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Solution

The fourth proportional to 125,953.92, 188,009.37 and 111,007.67 is: 165,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,953.92 : 188,009.37 = 111,007.67 : x
  2. Step 2: Convert to fraction form
    125,953.92/188,009.37 = 111,007.67/x
  3. Step 3: Cross multiply
    125,953.92x = 188,009.37 × 111,007.67
  4. Step 4: Simplify right side
    125,953.92x = 20,870,481,161.82
  5. Step 5: Solve for x
    x = 20,870,481,161.82/125,953.92
  6. Step 6: Final answer
    x = 165,699.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.