Home / 167,521.10-251,326.20-72,710.60

Finding the Fourth Proportional to 167,521.10, 251,326.20 and 72,710.60

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Solution

The fourth proportional to 167,521.10, 251,326.20 and 72,710.60 is: 109,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,521.10 : 251,326.20 = 72,710.60 : x
  2. Step 2: Convert to fraction form
    167,521.10/251,326.20 = 72,710.60/x
  3. Step 3: Cross multiply
    167,521.10x = 251,326.20 × 72,710.60
  4. Step 4: Simplify right side
    167,521.10x = 18,274,078,797.72
  5. Step 5: Solve for x
    x = 18,274,078,797.72/167,521.10
  6. Step 6: Final answer
    x = 109,085.24

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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.