Home / 155,956.20-233,588.70-120,781.80

Finding the Fourth Proportional to 155,956.20, 233,588.70 and 120,781.80

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Solution

The fourth proportional to 155,956.20, 233,588.70 and 120,781.80 is: 180,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,956.20 : 233,588.70 = 120,781.80 : x
  2. Step 2: Convert to fraction form
    155,956.20/233,588.70 = 120,781.80/x
  3. Step 3: Cross multiply
    155,956.20x = 233,588.70 × 120,781.80
  4. Step 4: Simplify right side
    155,956.20x = 28,213,263,645.66
  5. Step 5: Solve for x
    x = 28,213,263,645.66/155,956.20
  6. Step 6: Final answer
    x = 180,905.05

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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.