Home / 141,118.64-211,714.85-81,897.38

Finding the Fourth Proportional to 141,118.64, 211,714.85 and 81,897.38

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Solution

The fourth proportional to 141,118.64, 211,714.85 and 81,897.38 is: 122,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,118.64 : 211,714.85 = 81,897.38 : x
  2. Step 2: Convert to fraction form
    141,118.64/211,714.85 = 81,897.38/x
  3. Step 3: Cross multiply
    141,118.64x = 211,714.85 × 81,897.38
  4. Step 4: Simplify right side
    141,118.64x = 17,338,891,522.09
  5. Step 5: Solve for x
    x = 17,338,891,522.09/141,118.64
  6. Step 6: Final answer
    x = 122,867.48

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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.