Home / 136,738.18-205,128.96-57,853

Finding the Fourth Proportional to 136,738.18, 205,128.96 and 57,853

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Solution

The fourth proportional to 136,738.18, 205,128.96 and 57,853 is: 86,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,738.18 : 205,128.96 = 57,853 : x
  2. Step 2: Convert to fraction form
    136,738.18/205,128.96 = 57,853/x
  3. Step 3: Cross multiply
    136,738.18x = 205,128.96 × 57,853
  4. Step 4: Simplify right side
    136,738.18x = 11,867,325,722.88
  5. Step 5: Solve for x
    x = 11,867,325,722.88/136,738.18
  6. Step 6: Final answer
    x = 86,788.68

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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.