Home / 141,788.88-212,757.48-91,856.16

Finding the Fourth Proportional to 141,788.88, 212,757.48 and 91,856.16

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Solution

The fourth proportional to 141,788.88, 212,757.48 and 91,856.16 is: 137,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,788.88 : 212,757.48 = 91,856.16 : x
  2. Step 2: Convert to fraction form
    141,788.88/212,757.48 = 91,856.16/x
  3. Step 3: Cross multiply
    141,788.88x = 212,757.48 × 91,856.16
  4. Step 4: Simplify right side
    141,788.88x = 19,543,085,124.08
  5. Step 5: Solve for x
    x = 19,543,085,124.08/141,788.88
  6. Step 6: Final answer
    x = 137,832.28

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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.