Home / 191,619.78-287,431.86-73,297.14

Finding the Fourth Proportional to 191,619.78, 287,431.86 and 73,297.14

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Solution

The fourth proportional to 191,619.78, 287,431.86 and 73,297.14 is: 109,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,619.78 : 287,431.86 = 73,297.14 : x
  2. Step 2: Convert to fraction form
    191,619.78/287,431.86 = 73,297.14/x
  3. Step 3: Cross multiply
    191,619.78x = 287,431.86 × 73,297.14
  4. Step 4: Simplify right side
    191,619.78x = 21,067,933,282.88
  5. Step 5: Solve for x
    x = 21,067,933,282.88/191,619.78
  6. Step 6: Final answer
    x = 109,946.55

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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.