Home / 146,123.94-219,009.66-71,131.68

Finding the Fourth Proportional to 146,123.94, 219,009.66 and 71,131.68

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Solution

The fourth proportional to 146,123.94, 219,009.66 and 71,131.68 is: 106,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,123.94 : 219,009.66 = 71,131.68 : x
  2. Step 2: Convert to fraction form
    146,123.94/219,009.66 = 71,131.68/x
  3. Step 3: Cross multiply
    146,123.94x = 219,009.66 × 71,131.68
  4. Step 4: Simplify right side
    146,123.94x = 15,578,525,052.03
  5. Step 5: Solve for x
    x = 15,578,525,052.03/146,123.94
  6. Step 6: Final answer
    x = 106,611.72

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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.