Home / 127,454.25-175,815.12-76,453.41

Finding the Fourth Proportional to 127,454.25, 175,815.12 and 76,453.41

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Solution

The fourth proportional to 127,454.25, 175,815.12 and 76,453.41 is: 105,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,454.25 : 175,815.12 = 76,453.41 : x
  2. Step 2: Convert to fraction form
    127,454.25/175,815.12 = 76,453.41/x
  3. Step 3: Cross multiply
    127,454.25x = 175,815.12 × 76,453.41
  4. Step 4: Simplify right side
    127,454.25x = 13,441,665,453.56
  5. Step 5: Solve for x
    x = 13,441,665,453.56/127,454.25
  6. Step 6: Final answer
    x = 105,462.67

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1.5x scale

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.