Home / 136,890.74-188,907.19-76,462.27

Finding the Fourth Proportional to 136,890.74, 188,907.19 and 76,462.27

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Solution

The fourth proportional to 136,890.74, 188,907.19 and 76,462.27 is: 105,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,890.74 : 188,907.19 = 76,462.27 : x
  2. Step 2: Convert to fraction form
    136,890.74/188,907.19 = 76,462.27/x
  3. Step 3: Cross multiply
    136,890.74x = 188,907.19 × 76,462.27
  4. Step 4: Simplify right side
    136,890.74x = 14,444,271,903.30
  5. Step 5: Solve for x
    x = 14,444,271,903.30/136,890.74
  6. Step 6: Final answer
    x = 105,516.79

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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.