Home / 172,272.02-258,144.86-72,377.60

Finding the Fourth Proportional to 172,272.02, 258,144.86 and 72,377.60

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Solution

The fourth proportional to 172,272.02, 258,144.86 and 72,377.60 is: 108,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,272.02 : 258,144.86 = 72,377.60 : x
  2. Step 2: Convert to fraction form
    172,272.02/258,144.86 = 72,377.60/x
  3. Step 3: Cross multiply
    172,272.02x = 258,144.86 × 72,377.60
  4. Step 4: Simplify right side
    172,272.02x = 18,683,904,309.36
  5. Step 5: Solve for x
    x = 18,683,904,309.36/172,272.02
  6. Step 6: Final answer
    x = 108,455.83

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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.