Home / 155,604.22-214,731.53-87,621.32

Finding the Fourth Proportional to 155,604.22, 214,731.53 and 87,621.32

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Solution

The fourth proportional to 155,604.22, 214,731.53 and 87,621.32 is: 120,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,604.22 : 214,731.53 = 87,621.32 : x
  2. Step 2: Convert to fraction form
    155,604.22/214,731.53 = 87,621.32/x
  3. Step 3: Cross multiply
    155,604.22x = 214,731.53 × 87,621.32
  4. Step 4: Simplify right side
    155,604.22x = 18,815,060,104.22
  5. Step 5: Solve for x
    x = 18,815,060,104.22/155,604.22
  6. Step 6: Final answer
    x = 120,916.13

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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.