Home / 189,573.12-261,610.74-104,689.98

Finding the Fourth Proportional to 189,573.12, 261,610.74 and 104,689.98

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Solution

The fourth proportional to 189,573.12, 261,610.74 and 104,689.98 is: 144,472.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,573.12 : 261,610.74 = 104,689.98 : x
  2. Step 2: Convert to fraction form
    189,573.12/261,610.74 = 104,689.98/x
  3. Step 3: Cross multiply
    189,573.12x = 261,610.74 × 104,689.98
  4. Step 4: Simplify right side
    189,573.12x = 27,388,023,138.39
  5. Step 5: Solve for x
    x = 27,388,023,138.39/189,573.12
  6. Step 6: Final answer
    x = 144,472.08

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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.