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Finding the Fourth Proportional to 139,383.68, 209,089.32 and 44,590.06

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Solution

The fourth proportional to 139,383.68, 209,089.32 and 44,590.06 is: 66,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,383.68 : 209,089.32 = 44,590.06 : x
  2. Step 2: Convert to fraction form
    139,383.68/209,089.32 = 44,590.06/x
  3. Step 3: Cross multiply
    139,383.68x = 209,089.32 × 44,590.06
  4. Step 4: Simplify right side
    139,383.68x = 9,323,305,324.16
  5. Step 5: Solve for x
    x = 9,323,305,324.16/139,383.68
  6. Step 6: Final answer
    x = 66,889.50

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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.