Home / 141,784.29-195,671.06-78,122.07

Finding the Fourth Proportional to 141,784.29, 195,671.06 and 78,122.07

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Solution

The fourth proportional to 141,784.29, 195,671.06 and 78,122.07 is: 107,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,784.29 : 195,671.06 = 78,122.07 : x
  2. Step 2: Convert to fraction form
    141,784.29/195,671.06 = 78,122.07/x
  3. Step 3: Cross multiply
    141,784.29x = 195,671.06 × 78,122.07
  4. Step 4: Simplify right side
    141,784.29x = 15,286,227,855.68
  5. Step 5: Solve for x
    x = 15,286,227,855.68/141,784.29
  6. Step 6: Final answer
    x = 107,813.27

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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.