Home / 120,640.56-180,940.68-37,528.08

Finding the Fourth Proportional to 120,640.56, 180,940.68 and 37,528.08

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Solution

The fourth proportional to 120,640.56, 180,940.68 and 37,528.08 is: 56,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,640.56 : 180,940.68 = 37,528.08 : x
  2. Step 2: Convert to fraction form
    120,640.56/180,940.68 = 37,528.08/x
  3. Step 3: Cross multiply
    120,640.56x = 180,940.68 × 37,528.08
  4. Step 4: Simplify right side
    120,640.56x = 6,790,356,314.29
  5. Step 5: Solve for x
    x = 6,790,356,314.29/120,640.56
  6. Step 6: Final answer
    x = 56,285.85

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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.