Home / 155,520.44-214,625.04-87,541.80

Finding the Fourth Proportional to 155,520.44, 214,625.04 and 87,541.80

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Solution

The fourth proportional to 155,520.44, 214,625.04 and 87,541.80 is: 120,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,520.44 : 214,625.04 = 87,541.80 : x
  2. Step 2: Convert to fraction form
    155,520.44/214,625.04 = 87,541.80/x
  3. Step 3: Cross multiply
    155,520.44x = 214,625.04 × 87,541.80
  4. Step 4: Simplify right side
    155,520.44x = 18,788,662,326.67
  5. Step 5: Solve for x
    x = 18,788,662,326.67/155,520.44
  6. Step 6: Final answer
    x = 120,811.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.