Home / 109,910.30-164,537.40-65,514.20

Finding the Fourth Proportional to 109,910.30, 164,537.40 and 65,514.20

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Solution

The fourth proportional to 109,910.30, 164,537.40 and 65,514.20 is: 98,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,910.30 : 164,537.40 = 65,514.20 : x
  2. Step 2: Convert to fraction form
    109,910.30/164,537.40 = 65,514.20/x
  3. Step 3: Cross multiply
    109,910.30x = 164,537.40 × 65,514.20
  4. Step 4: Simplify right side
    109,910.30x = 10,779,536,131.08
  5. Step 5: Solve for x
    x = 10,779,536,131.08/109,910.30
  6. Step 6: Final answer
    x = 98,075.76

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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.