Home / 127,786.35-191,612.93-47,758.53

Finding the Fourth Proportional to 127,786.35, 191,612.93 and 47,758.53

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Solution

The fourth proportional to 127,786.35, 191,612.93 and 47,758.53 is: 71,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,786.35 : 191,612.93 = 47,758.53 : x
  2. Step 2: Convert to fraction form
    127,786.35/191,612.93 = 47,758.53/x
  3. Step 3: Cross multiply
    127,786.35x = 191,612.93 × 47,758.53
  4. Step 4: Simplify right side
    127,786.35x = 9,151,151,627.00
  5. Step 5: Solve for x
    x = 9,151,151,627.00/127,786.35
  6. Step 6: Final answer
    x = 71,612.90

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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.