Home / 216,087.60-324,043.92-82,972.20

Finding the Fourth Proportional to 216,087.60, 324,043.92 and 82,972.20

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Solution

The fourth proportional to 216,087.60, 324,043.92 and 82,972.20 is: 124,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,087.60 : 324,043.92 = 82,972.20 : x
  2. Step 2: Convert to fraction form
    216,087.60/324,043.92 = 82,972.20/x
  3. Step 3: Cross multiply
    216,087.60x = 324,043.92 × 82,972.20
  4. Step 4: Simplify right side
    216,087.60x = 26,886,636,939.02
  5. Step 5: Solve for x
    x = 26,886,636,939.02/216,087.60
  6. Step 6: Final answer
    x = 124,424.71

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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.