Home / 260,682.95-391,031.22-83,189.72

Finding the Fourth Proportional to 260,682.95, 391,031.22 and 83,189.72

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Solution

The fourth proportional to 260,682.95, 391,031.22 and 83,189.72 is: 124,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,682.95 : 391,031.22 = 83,189.72 : x
  2. Step 2: Convert to fraction form
    260,682.95/391,031.22 = 83,189.72/x
  3. Step 3: Cross multiply
    260,682.95x = 391,031.22 × 83,189.72
  4. Step 4: Simplify right side
    260,682.95x = 32,529,777,703.06
  5. Step 5: Solve for x
    x = 32,529,777,703.06/260,682.95
  6. Step 6: Final answer
    x = 124,786.75

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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.