Home / 127,511.20-191,266.80-44,405.20

Finding the Fourth Proportional to 127,511.20, 191,266.80 and 44,405.20

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Solution

The fourth proportional to 127,511.20, 191,266.80 and 44,405.20 is: 66,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,511.20 : 191,266.80 = 44,405.20 : x
  2. Step 2: Convert to fraction form
    127,511.20/191,266.80 = 44,405.20/x
  3. Step 3: Cross multiply
    127,511.20x = 191,266.80 × 44,405.20
  4. Step 4: Simplify right side
    127,511.20x = 8,493,240,507.36
  5. Step 5: Solve for x
    x = 8,493,240,507.36/127,511.20
  6. Step 6: Final answer
    x = 66,607.80

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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.