Home / 120,450.26-180,737.07-57,341.78

Finding the Fourth Proportional to 120,450.26, 180,737.07 and 57,341.78

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Solution

The fourth proportional to 120,450.26, 180,737.07 and 57,341.78 is: 86,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,450.26 : 180,737.07 = 57,341.78 : x
  2. Step 2: Convert to fraction form
    120,450.26/180,737.07 = 57,341.78/x
  3. Step 3: Cross multiply
    120,450.26x = 180,737.07 × 57,341.78
  4. Step 4: Simplify right side
    120,450.26x = 10,363,785,305.78
  5. Step 5: Solve for x
    x = 10,363,785,305.78/120,450.26
  6. Step 6: Final answer
    x = 86,042.03

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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.