Home / 136,686.42-205,028.37-43,192.17

Finding the Fourth Proportional to 136,686.42, 205,028.37 and 43,192.17

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Solution

The fourth proportional to 136,686.42, 205,028.37 and 43,192.17 is: 64,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,686.42 : 205,028.37 = 43,192.17 : x
  2. Step 2: Convert to fraction form
    136,686.42/205,028.37 = 43,192.17/x
  3. Step 3: Cross multiply
    136,686.42x = 205,028.37 × 43,192.17
  4. Step 4: Simplify right side
    136,686.42x = 8,855,620,211.86
  5. Step 5: Solve for x
    x = 8,855,620,211.86/136,686.42
  6. Step 6: Final answer
    x = 64,787.86

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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.