Home / 172,705.18-238,198.08-112,295.38

Finding the Fourth Proportional to 172,705.18, 238,198.08 and 112,295.38

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Solution

The fourth proportional to 172,705.18, 238,198.08 and 112,295.38 is: 154,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,705.18 : 238,198.08 = 112,295.38 : x
  2. Step 2: Convert to fraction form
    172,705.18/238,198.08 = 112,295.38/x
  3. Step 3: Cross multiply
    172,705.18x = 238,198.08 × 112,295.38
  4. Step 4: Simplify right side
    172,705.18x = 26,748,543,908.87
  5. Step 5: Solve for x
    x = 26,748,543,908.87/172,705.18
  6. Step 6: Final answer
    x = 154,879.80

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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.