Home / 439,610.12-659,416.80-107,186.12

Finding the Fourth Proportional to 439,610.12, 659,416.80 and 107,186.12

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Solution

The fourth proportional to 439,610.12, 659,416.80 and 107,186.12 is: 160,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,610.12 : 659,416.80 = 107,186.12 : x
  2. Step 2: Convert to fraction form
    439,610.12/659,416.80 = 107,186.12/x
  3. Step 3: Cross multiply
    439,610.12x = 659,416.80 × 107,186.12
  4. Step 4: Simplify right side
    439,610.12x = 70,680,328,254.82
  5. Step 5: Solve for x
    x = 70,680,328,254.82/439,610.12
  6. Step 6: Final answer
    x = 160,779.57

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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.