Home / 120,370.05-180,554.65-36,129.85

Finding the Fourth Proportional to 120,370.05, 180,554.65 and 36,129.85

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Solution

The fourth proportional to 120,370.05, 180,554.65 and 36,129.85 is: 54,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,370.05 : 180,554.65 = 36,129.85 : x
  2. Step 2: Convert to fraction form
    120,370.05/180,554.65 = 36,129.85/x
  3. Step 3: Cross multiply
    120,370.05x = 180,554.65 × 36,129.85
  4. Step 4: Simplify right side
    120,370.05x = 6,523,411,879.59
  5. Step 5: Solve for x
    x = 6,523,411,879.59/120,370.05
  6. Step 6: Final answer
    x = 54,194.64

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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.