Home / 141,258.32-211,976.76-78,969.68

Finding the Fourth Proportional to 141,258.32, 211,976.76 and 78,969.68

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Solution

The fourth proportional to 141,258.32, 211,976.76 and 78,969.68 is: 118,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,258.32 : 211,976.76 = 78,969.68 : x
  2. Step 2: Convert to fraction form
    141,258.32/211,976.76 = 78,969.68/x
  3. Step 3: Cross multiply
    141,258.32x = 211,976.76 × 78,969.68
  4. Step 4: Simplify right side
    141,258.32x = 16,739,736,904.64
  5. Step 5: Solve for x
    x = 16,739,736,904.64/141,258.32
  6. Step 6: Final answer
    x = 118,504.43

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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.