Home / 136,664.70-188,521.47-80,065.14

Finding the Fourth Proportional to 136,664.70, 188,521.47 and 80,065.14

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Solution

The fourth proportional to 136,664.70, 188,521.47 and 80,065.14 is: 110,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.70 : 188,521.47 = 80,065.14 : x
  2. Step 2: Convert to fraction form
    136,664.70/188,521.47 = 80,065.14/x
  3. Step 3: Cross multiply
    136,664.70x = 188,521.47 × 80,065.14
  4. Step 4: Simplify right side
    136,664.70x = 15,093,997,888.56
  5. Step 5: Solve for x
    x = 15,093,997,888.56/136,664.70
  6. Step 6: Final answer
    x = 110,445.48

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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.