Home / 140,845.86-211,479.85-121,928.86

Finding the Fourth Proportional to 140,845.86, 211,479.85 and 121,928.86

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Solution

The fourth proportional to 140,845.86, 211,479.85 and 121,928.86 is: 183,075.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,845.86 : 211,479.85 = 121,928.86 : x
  2. Step 2: Convert to fraction form
    140,845.86/211,479.85 = 121,928.86/x
  3. Step 3: Cross multiply
    140,845.86x = 211,479.85 × 121,928.86
  4. Step 4: Simplify right side
    140,845.86x = 25,785,496,022.04
  5. Step 5: Solve for x
    x = 25,785,496,022.04/140,845.86
  6. Step 6: Final answer
    x = 183,075.99

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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.