Home / 139,841.28-209,678.94-55,556.19

Finding the Fourth Proportional to 139,841.28, 209,678.94 and 55,556.19

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Solution

The fourth proportional to 139,841.28, 209,678.94 and 55,556.19 is: 83,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,841.28 : 209,678.94 = 55,556.19 : x
  2. Step 2: Convert to fraction form
    139,841.28/209,678.94 = 55,556.19/x
  3. Step 3: Cross multiply
    139,841.28x = 209,678.94 × 55,556.19
  4. Step 4: Simplify right side
    139,841.28x = 11,648,963,029.64
  5. Step 5: Solve for x
    x = 11,648,963,029.64/139,841.28
  6. Step 6: Final answer
    x = 83,301.32

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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.