Home / 137,905.40-206,858.10-97,664.60

Finding the Fourth Proportional to 137,905.40, 206,858.10 and 97,664.60

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Solution

The fourth proportional to 137,905.40, 206,858.10 and 97,664.60 is: 146,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,905.40 : 206,858.10 = 97,664.60 : x
  2. Step 2: Convert to fraction form
    137,905.40/206,858.10 = 97,664.60/x
  3. Step 3: Cross multiply
    137,905.40x = 206,858.10 × 97,664.60
  4. Step 4: Simplify right side
    137,905.40x = 20,202,713,593.26
  5. Step 5: Solve for x
    x = 20,202,713,593.26/137,905.40
  6. Step 6: Final answer
    x = 146,496.90

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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.