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Finding the Fourth Proportional to 172,995.30, 259,602.30 and 101,917.80

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Solution

The fourth proportional to 172,995.30, 259,602.30 and 101,917.80 is: 152,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,995.30 : 259,602.30 = 101,917.80 : x
  2. Step 2: Convert to fraction form
    172,995.30/259,602.30 = 101,917.80/x
  3. Step 3: Cross multiply
    172,995.30x = 259,602.30 × 101,917.80
  4. Step 4: Simplify right side
    172,995.30x = 26,458,095,290.94
  5. Step 5: Solve for x
    x = 26,458,095,290.94/172,995.30
  6. Step 6: Final answer
    x = 152,941.12

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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.