Home / 172,956.10-238,643.13-105,008.85

Finding the Fourth Proportional to 172,956.10, 238,643.13 and 105,008.85

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Solution

The fourth proportional to 172,956.10, 238,643.13 and 105,008.85 is: 144,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.10 : 238,643.13 = 105,008.85 : x
  2. Step 2: Convert to fraction form
    172,956.10/238,643.13 = 105,008.85/x
  3. Step 3: Cross multiply
    172,956.10x = 238,643.13 × 105,008.85
  4. Step 4: Simplify right side
    172,956.10x = 25,059,640,641.70
  5. Step 5: Solve for x
    x = 25,059,640,641.70/172,956.10
  6. Step 6: Final answer
    x = 144,890.18

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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.