Home / 115,912.70-173,869.05-74,440.70

Finding the Fourth Proportional to 115,912.70, 173,869.05 and 74,440.70

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Solution

The fourth proportional to 115,912.70, 173,869.05 and 74,440.70 is: 111,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,912.70 : 173,869.05 = 74,440.70 : x
  2. Step 2: Convert to fraction form
    115,912.70/173,869.05 = 74,440.70/x
  3. Step 3: Cross multiply
    115,912.70x = 173,869.05 × 74,440.70
  4. Step 4: Simplify right side
    115,912.70x = 12,942,933,790.34
  5. Step 5: Solve for x
    x = 12,942,933,790.34/115,912.70
  6. Step 6: Final answer
    x = 111,661.05

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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.