Home / 136,939.58-205,486.73-73,758.36

Finding the Fourth Proportional to 136,939.58, 205,486.73 and 73,758.36

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Solution

The fourth proportional to 136,939.58, 205,486.73 and 73,758.36 is: 110,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,939.58 : 205,486.73 = 73,758.36 : x
  2. Step 2: Convert to fraction form
    136,939.58/205,486.73 = 73,758.36/x
  3. Step 3: Cross multiply
    136,939.58x = 205,486.73 × 73,758.36
  4. Step 4: Simplify right side
    136,939.58x = 15,156,363,837.77
  5. Step 5: Solve for x
    x = 15,156,363,837.77/136,939.58
  6. Step 6: Final answer
    x = 110,679.21

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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.