Home / 155,905.20-233,512.20-120,730.80

Finding the Fourth Proportional to 155,905.20, 233,512.20 and 120,730.80

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Solution

The fourth proportional to 155,905.20, 233,512.20 and 120,730.80 is: 180,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,905.20 : 233,512.20 = 120,730.80 : x
  2. Step 2: Convert to fraction form
    155,905.20/233,512.20 = 120,730.80/x
  3. Step 3: Cross multiply
    155,905.20x = 233,512.20 × 120,730.80
  4. Step 4: Simplify right side
    155,905.20x = 28,192,114,715.76
  5. Step 5: Solve for x
    x = 28,192,114,715.76/155,905.20
  6. Step 6: Final answer
    x = 180,828.57

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1.5x scale

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.