Home / 136,143.18-204,236.64-57,279.96

Finding the Fourth Proportional to 136,143.18, 204,236.64 and 57,279.96

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Solution

The fourth proportional to 136,143.18, 204,236.64 and 57,279.96 is: 85,929.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,143.18 : 204,236.64 = 57,279.96 : x
  2. Step 2: Convert to fraction form
    136,143.18/204,236.64 = 57,279.96/x
  3. Step 3: Cross multiply
    136,143.18x = 204,236.64 × 57,279.96
  4. Step 4: Simplify right side
    136,143.18x = 11,698,666,569.73
  5. Step 5: Solve for x
    x = 11,698,666,569.73/136,143.18
  6. Step 6: Final answer
    x = 85,929.14

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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.