Home / 141,908.31-195,867.59-85,308.75

Finding the Fourth Proportional to 141,908.31, 195,867.59 and 85,308.75

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Solution

The fourth proportional to 141,908.31, 195,867.59 and 85,308.75 is: 117,746.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,908.31 : 195,867.59 = 85,308.75 : x
  2. Step 2: Convert to fraction form
    141,908.31/195,867.59 = 85,308.75/x
  3. Step 3: Cross multiply
    141,908.31x = 195,867.59 × 85,308.75
  4. Step 4: Simplify right side
    141,908.31x = 16,709,218,841.87
  5. Step 5: Solve for x
    x = 16,709,218,841.87/141,908.31
  6. Step 6: Final answer
    x = 117,746.58

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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.