Home / 189,104.09-283,625.10-76,779.77

Finding the Fourth Proportional to 189,104.09, 283,625.10 and 76,779.77

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Solution

The fourth proportional to 189,104.09, 283,625.10 and 76,779.77 is: 115,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,104.09 : 283,625.10 = 76,779.77 : x
  2. Step 2: Convert to fraction form
    189,104.09/283,625.10 = 76,779.77/x
  3. Step 3: Cross multiply
    189,104.09x = 283,625.10 × 76,779.77
  4. Step 4: Simplify right side
    189,104.09x = 21,776,668,526.10
  5. Step 5: Solve for x
    x = 21,776,668,526.10/189,104.09
  6. Step 6: Final answer
    x = 115,157.05

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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.