Home / 141,784.54-195,671.40-78,122.32

Finding the Fourth Proportional to 141,784.54, 195,671.40 and 78,122.32

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Solution

The fourth proportional to 141,784.54, 195,671.40 and 78,122.32 is: 107,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,784.54 : 195,671.40 = 78,122.32 : x
  2. Step 2: Convert to fraction form
    141,784.54/195,671.40 = 78,122.32/x
  3. Step 3: Cross multiply
    141,784.54x = 195,671.40 × 78,122.32
  4. Step 4: Simplify right side
    141,784.54x = 15,286,303,725.65
  5. Step 5: Solve for x
    x = 15,286,303,725.65/141,784.54
  6. Step 6: Final answer
    x = 107,813.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.