Home / 172,384-258,449.28-65,749.12

Finding the Fourth Proportional to 172,384, 258,449.28 and 65,749.12

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Solution

The fourth proportional to 172,384, 258,449.28 and 65,749.12 is: 98,575.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,384 : 258,449.28 = 65,749.12 : x
  2. Step 2: Convert to fraction form
    172,384/258,449.28 = 65,749.12/x
  3. Step 3: Cross multiply
    172,384x = 258,449.28 × 65,749.12
  4. Step 4: Simplify right side
    172,384x = 16,992,812,724.63
  5. Step 5: Solve for x
    x = 16,992,812,724.63/172,384
  6. Step 6: Final answer
    x = 98,575.35

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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.