Home / 155,977.20-233,620.20-120,802.80

Finding the Fourth Proportional to 155,977.20, 233,620.20 and 120,802.80

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Solution

The fourth proportional to 155,977.20, 233,620.20 and 120,802.80 is: 180,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,977.20 : 233,620.20 = 120,802.80 : x
  2. Step 2: Convert to fraction form
    155,977.20/233,620.20 = 120,802.80/x
  3. Step 3: Cross multiply
    155,977.20x = 233,620.20 × 120,802.80
  4. Step 4: Simplify right side
    155,977.20x = 28,221,974,296.56
  5. Step 5: Solve for x
    x = 28,221,974,296.56/155,977.20
  6. Step 6: Final answer
    x = 180,936.54

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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.