Home / 125,049.02-172,584.07-71,321.72

Finding the Fourth Proportional to 125,049.02, 172,584.07 and 71,321.72

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Solution

The fourth proportional to 125,049.02, 172,584.07 and 71,321.72 is: 98,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,049.02 : 172,584.07 = 71,321.72 : x
  2. Step 2: Convert to fraction form
    125,049.02/172,584.07 = 71,321.72/x
  3. Step 3: Cross multiply
    125,049.02x = 172,584.07 × 71,321.72
  4. Step 4: Simplify right side
    125,049.02x = 12,308,991,675.78
  5. Step 5: Solve for x
    x = 12,308,991,675.78/125,049.02
  6. Step 6: Final answer
    x = 98,433.34

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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.