Home / 133,049.54-183,610.10-78,603.50

Finding the Fourth Proportional to 133,049.54, 183,610.10 and 78,603.50

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Solution

The fourth proportional to 133,049.54, 183,610.10 and 78,603.50 is: 108,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,049.54 : 183,610.10 = 78,603.50 : x
  2. Step 2: Convert to fraction form
    133,049.54/183,610.10 = 78,603.50/x
  3. Step 3: Cross multiply
    133,049.54x = 183,610.10 × 78,603.50
  4. Step 4: Simplify right side
    133,049.54x = 14,432,396,495.35
  5. Step 5: Solve for x
    x = 14,432,396,495.35/133,049.54
  6. Step 6: Final answer
    x = 108,473.85

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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.