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Finding the Fourth Proportional to 152,745.62, 210,783.38 and 84,765.56

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Solution

The fourth proportional to 152,745.62, 210,783.38 and 84,765.56 is: 116,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,745.62 : 210,783.38 = 84,765.56 : x
  2. Step 2: Convert to fraction form
    152,745.62/210,783.38 = 84,765.56/x
  3. Step 3: Cross multiply
    152,745.62x = 210,783.38 × 84,765.56
  4. Step 4: Simplify right side
    152,745.62x = 17,867,169,766.65
  5. Step 5: Solve for x
    x = 17,867,169,766.65/152,745.62
  6. Step 6: Final answer
    x = 116,973.37

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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.