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Finding the Fourth Proportional to 172,901.83, 238,664.06 and 101,305.03

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Solution

The fourth proportional to 172,901.83, 238,664.06 and 101,305.03 is: 139,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,901.83 : 238,664.06 = 101,305.03 : x
  2. Step 2: Convert to fraction form
    172,901.83/238,664.06 = 101,305.03/x
  3. Step 3: Cross multiply
    172,901.83x = 238,664.06 × 101,305.03
  4. Step 4: Simplify right side
    172,901.83x = 24,177,869,758.22
  5. Step 5: Solve for x
    x = 24,177,869,758.22/172,901.83
  6. Step 6: Final answer
    x = 139,835.82

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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.