Home / 115,056.32-172,467.60-87,296

Finding the Fourth Proportional to 115,056.32, 172,467.60 and 87,296

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Solution

The fourth proportional to 115,056.32, 172,467.60 and 87,296 is: 130,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,056.32 : 172,467.60 = 87,296 : x
  2. Step 2: Convert to fraction form
    115,056.32/172,467.60 = 87,296/x
  3. Step 3: Cross multiply
    115,056.32x = 172,467.60 × 87,296
  4. Step 4: Simplify right side
    115,056.32x = 15,055,731,609.60
  5. Step 5: Solve for x
    x = 15,055,731,609.60/115,056.32
  6. Step 6: Final answer
    x = 130,855.32

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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.