Home / 142,998.46-214,540.74-128,892.31

Finding the Fourth Proportional to 142,998.46, 214,540.74 and 128,892.31

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Solution

The fourth proportional to 142,998.46, 214,540.74 and 128,892.31 is: 193,377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,998.46 : 214,540.74 = 128,892.31 : x
  2. Step 2: Convert to fraction form
    142,998.46/214,540.74 = 128,892.31/x
  3. Step 3: Cross multiply
    142,998.46x = 214,540.74 × 128,892.31
  4. Step 4: Simplify right side
    142,998.46x = 27,652,650,495.01
  5. Step 5: Solve for x
    x = 27,652,650,495.01/142,998.46
  6. Step 6: Final answer
    x = 193,377.27

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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.