Home / 106,450.19-146,903.39-68,790.05

Finding the Fourth Proportional to 106,450.19, 146,903.39 and 68,790.05

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Solution

The fourth proportional to 106,450.19, 146,903.39 and 68,790.05 is: 94,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,450.19 : 146,903.39 = 68,790.05 : x
  2. Step 2: Convert to fraction form
    106,450.19/146,903.39 = 68,790.05/x
  3. Step 3: Cross multiply
    106,450.19x = 146,903.39 × 68,790.05
  4. Step 4: Simplify right side
    106,450.19x = 10,105,491,543.27
  5. Step 5: Solve for x
    x = 10,105,491,543.27/106,450.19
  6. Step 6: Final answer
    x = 94,931.64

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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.