Home / 188,408.30-259,988.36-107,817.35

Finding the Fourth Proportional to 188,408.30, 259,988.36 and 107,817.35

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Solution

The fourth proportional to 188,408.30, 259,988.36 and 107,817.35 is: 148,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,408.30 : 259,988.36 = 107,817.35 : x
  2. Step 2: Convert to fraction form
    188,408.30/259,988.36 = 107,817.35/x
  3. Step 3: Cross multiply
    188,408.30x = 259,988.36 × 107,817.35
  4. Step 4: Simplify right side
    188,408.30x = 28,031,254,167.02
  5. Step 5: Solve for x
    x = 28,031,254,167.02/188,408.30
  6. Step 6: Final answer
    x = 148,779.30

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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.