Home / 141,169.72-211,555.50-78,018.28

Finding the Fourth Proportional to 141,169.72, 211,555.50 and 78,018.28

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Solution

The fourth proportional to 141,169.72, 211,555.50 and 78,018.28 is: 116,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,169.72 : 211,555.50 = 78,018.28 : x
  2. Step 2: Convert to fraction form
    141,169.72/211,555.50 = 78,018.28/x
  3. Step 3: Cross multiply
    141,169.72x = 211,555.50 × 78,018.28
  4. Step 4: Simplify right side
    141,169.72x = 16,505,196,234.54
  5. Step 5: Solve for x
    x = 16,505,196,234.54/141,169.72
  6. Step 6: Final answer
    x = 116,917.40

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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.