Home / 172,272.30-258,302.61-66,968.52

Finding the Fourth Proportional to 172,272.30, 258,302.61 and 66,968.52

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Solution

The fourth proportional to 172,272.30, 258,302.61 and 66,968.52 is: 100,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,272.30 : 258,302.61 = 66,968.52 : x
  2. Step 2: Convert to fraction form
    172,272.30/258,302.61 = 66,968.52/x
  3. Step 3: Cross multiply
    172,272.30x = 258,302.61 × 66,968.52
  4. Step 4: Simplify right side
    172,272.30x = 17,298,143,503.84
  5. Step 5: Solve for x
    x = 17,298,143,503.84/172,272.30
  6. Step 6: Final answer
    x = 100,411.64

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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.