Home / 109,450.80-164,217.21-38,378.79

Finding the Fourth Proportional to 109,450.80, 164,217.21 and 38,378.79

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Solution

The fourth proportional to 109,450.80, 164,217.21 and 38,378.79 is: 57,582.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,450.80 : 164,217.21 = 38,378.79 : x
  2. Step 2: Convert to fraction form
    109,450.80/164,217.21 = 38,378.79/x
  3. Step 3: Cross multiply
    109,450.80x = 164,217.21 × 38,378.79
  4. Step 4: Simplify right side
    109,450.80x = 6,302,457,816.98
  5. Step 5: Solve for x
    x = 6,302,457,816.98/109,450.80
  6. Step 6: Final answer
    x = 57,582.57

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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.