Home / 131,229.60-196,844.40-104,985.60

Finding the Fourth Proportional to 131,229.60, 196,844.40 and 104,985.60

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Solution

The fourth proportional to 131,229.60, 196,844.40 and 104,985.60 is: 157,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,229.60 : 196,844.40 = 104,985.60 : x
  2. Step 2: Convert to fraction form
    131,229.60/196,844.40 = 104,985.60/x
  3. Step 3: Cross multiply
    131,229.60x = 196,844.40 × 104,985.60
  4. Step 4: Simplify right side
    131,229.60x = 20,665,827,440.64
  5. Step 5: Solve for x
    x = 20,665,827,440.64/131,229.60
  6. Step 6: Final answer
    x = 157,478.40

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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.