Home / 127,962.80-191,944.20-61,391.60

Finding the Fourth Proportional to 127,962.80, 191,944.20 and 61,391.60

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Solution

The fourth proportional to 127,962.80, 191,944.20 and 61,391.60 is: 92,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,962.80 : 191,944.20 = 61,391.60 : x
  2. Step 2: Convert to fraction form
    127,962.80/191,944.20 = 61,391.60/x
  3. Step 3: Cross multiply
    127,962.80x = 191,944.20 × 61,391.60
  4. Step 4: Simplify right side
    127,962.80x = 11,783,761,548.72
  5. Step 5: Solve for x
    x = 11,783,761,548.72/127,962.80
  6. Step 6: Final answer
    x = 92,087.40

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1.5x scale

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.