Home / 171,415.70-236,475.15-111,005.79

Finding the Fourth Proportional to 171,415.70, 236,475.15 and 111,005.79

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Solution

The fourth proportional to 171,415.70, 236,475.15 and 111,005.79 is: 153,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,415.70 : 236,475.15 = 111,005.79 : x
  2. Step 2: Convert to fraction form
    171,415.70/236,475.15 = 111,005.79/x
  3. Step 3: Cross multiply
    171,415.70x = 236,475.15 × 111,005.79
  4. Step 4: Simplify right side
    171,415.70x = 26,250,110,841.12
  5. Step 5: Solve for x
    x = 26,250,110,841.12/171,415.70
  6. Step 6: Final answer
    x = 153,137.15

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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.