Home / 126,603.88-189,835.76-51,776.57

Finding the Fourth Proportional to 126,603.88, 189,835.76 and 51,776.57

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Solution

The fourth proportional to 126,603.88, 189,835.76 and 51,776.57 is: 77,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,603.88 : 189,835.76 = 51,776.57 : x
  2. Step 2: Convert to fraction form
    126,603.88/189,835.76 = 51,776.57/x
  3. Step 3: Cross multiply
    126,603.88x = 189,835.76 × 51,776.57
  4. Step 4: Simplify right side
    126,603.88x = 9,829,045,166.05
  5. Step 5: Solve for x
    x = 9,829,045,166.05/126,603.88
  6. Step 6: Final answer
    x = 77,636.21

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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.