Home / 112,908.23-155,815.50-61,917.73

Finding the Fourth Proportional to 112,908.23, 155,815.50 and 61,917.73

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Solution

The fourth proportional to 112,908.23, 155,815.50 and 61,917.73 is: 85,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,908.23 : 155,815.50 = 61,917.73 : x
  2. Step 2: Convert to fraction form
    112,908.23/155,815.50 = 61,917.73/x
  3. Step 3: Cross multiply
    112,908.23x = 155,815.50 × 61,917.73
  4. Step 4: Simplify right side
    112,908.23x = 9,647,742,058.82
  5. Step 5: Solve for x
    x = 9,647,742,058.82/112,908.23
  6. Step 6: Final answer
    x = 85,447.64

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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.