Home / 120,025.40-180,035.78-35,842.61

Finding the Fourth Proportional to 120,025.40, 180,035.78 and 35,842.61

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Solution

The fourth proportional to 120,025.40, 180,035.78 and 35,842.61 is: 53,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,025.40 : 180,035.78 = 35,842.61 : x
  2. Step 2: Convert to fraction form
    120,025.40/180,035.78 = 35,842.61/x
  3. Step 3: Cross multiply
    120,025.40x = 180,035.78 × 35,842.61
  4. Step 4: Simplify right side
    120,025.40x = 6,452,951,169.19
  5. Step 5: Solve for x
    x = 6,452,951,169.19/120,025.40
  6. Step 6: Final answer
    x = 53,763.22

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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.