Home / 149,429.14-206,212.37-81,446.18

Finding the Fourth Proportional to 149,429.14, 206,212.37 and 81,446.18

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Solution

The fourth proportional to 149,429.14, 206,212.37 and 81,446.18 is: 112,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,429.14 : 206,212.37 = 81,446.18 : x
  2. Step 2: Convert to fraction form
    149,429.14/206,212.37 = 81,446.18/x
  3. Step 3: Cross multiply
    149,429.14x = 206,212.37 × 81,446.18
  4. Step 4: Simplify right side
    149,429.14x = 16,795,208,366.95
  5. Step 5: Solve for x
    x = 16,795,208,366.95/149,429.14
  6. Step 6: Final answer
    x = 112,395.81

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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.