Home / 139,448.52-209,258.64-55,194.35

Finding the Fourth Proportional to 139,448.52, 209,258.64 and 55,194.35

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Solution

The fourth proportional to 139,448.52, 209,258.64 and 55,194.35 is: 82,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,448.52 : 209,258.64 = 55,194.35 : x
  2. Step 2: Convert to fraction form
    139,448.52/209,258.64 = 55,194.35/x
  3. Step 3: Cross multiply
    139,448.52x = 209,258.64 × 55,194.35
  4. Step 4: Simplify right side
    139,448.52x = 11,549,894,616.68
  5. Step 5: Solve for x
    x = 11,549,894,616.68/139,448.52
  6. Step 6: Final answer
    x = 82,825.51

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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.