Home / 115,330.20-172,962.90-36,468.60

Finding the Fourth Proportional to 115,330.20, 172,962.90 and 36,468.60

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Solution

The fourth proportional to 115,330.20, 172,962.90 and 36,468.60 is: 54,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,330.20 : 172,962.90 = 36,468.60 : x
  2. Step 2: Convert to fraction form
    115,330.20/172,962.90 = 36,468.60/x
  3. Step 3: Cross multiply
    115,330.20x = 172,962.90 × 36,468.60
  4. Step 4: Simplify right side
    115,330.20x = 6,307,714,814.94
  5. Step 5: Solve for x
    x = 6,307,714,814.94/115,330.20
  6. Step 6: Final answer
    x = 54,692.65

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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.