Home / 131,205.80-196,905.90-52,376.60

Finding the Fourth Proportional to 131,205.80, 196,905.90 and 52,376.60

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Solution

The fourth proportional to 131,205.80, 196,905.90 and 52,376.60 is: 78,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,205.80 : 196,905.90 = 52,376.60 : x
  2. Step 2: Convert to fraction form
    131,205.80/196,905.90 = 52,376.60/x
  3. Step 3: Cross multiply
    131,205.80x = 196,905.90 × 52,376.60
  4. Step 4: Simplify right side
    131,205.80x = 10,313,261,561.94
  5. Step 5: Solve for x
    x = 10,313,261,561.94/131,205.80
  6. Step 6: Final answer
    x = 78,603.70

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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.