Home / 172,746.17-258,922.69-105,129.04

Finding the Fourth Proportional to 172,746.17, 258,922.69 and 105,129.04

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Solution

The fourth proportional to 172,746.17, 258,922.69 and 105,129.04 is: 157,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,746.17 : 258,922.69 = 105,129.04 : x
  2. Step 2: Convert to fraction form
    172,746.17/258,922.69 = 105,129.04/x
  3. Step 3: Cross multiply
    172,746.17x = 258,922.69 × 105,129.04
  4. Step 4: Simplify right side
    172,746.17x = 27,220,293,833.92
  5. Step 5: Solve for x
    x = 27,220,293,833.92/172,746.17
  6. Step 6: Final answer
    x = 157,573.94

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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.