Home / 136,664.70-205,035.45-66,546.30

Finding the Fourth Proportional to 136,664.70, 205,035.45 and 66,546.30

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Solution

The fourth proportional to 136,664.70, 205,035.45 and 66,546.30 is: 99,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.70 : 205,035.45 = 66,546.30 : x
  2. Step 2: Convert to fraction form
    136,664.70/205,035.45 = 66,546.30/x
  3. Step 3: Cross multiply
    136,664.70x = 205,035.45 × 66,546.30
  4. Step 4: Simplify right side
    136,664.70x = 13,644,350,566.34
  5. Step 5: Solve for x
    x = 13,644,350,566.34/136,664.70
  6. Step 6: Final answer
    x = 99,838.15

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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.