Home / 112,415.58-168,619.31-28,176.38

Finding the Fourth Proportional to 112,415.58, 168,619.31 and 28,176.38

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Solution

The fourth proportional to 112,415.58, 168,619.31 and 28,176.38 is: 42,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.58 : 168,619.31 = 28,176.38 : x
  2. Step 2: Convert to fraction form
    112,415.58/168,619.31 = 28,176.38/x
  3. Step 3: Cross multiply
    112,415.58x = 168,619.31 × 28,176.38
  4. Step 4: Simplify right side
    112,415.58x = 4,751,081,753.90
  5. Step 5: Solve for x
    x = 4,751,081,753.90/112,415.58
  6. Step 6: Final answer
    x = 42,263.55

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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.