Home / 131,031.60-196,693.20-71,982.60

Finding the Fourth Proportional to 131,031.60, 196,693.20 and 71,982.60

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Solution

The fourth proportional to 131,031.60, 196,693.20 and 71,982.60 is: 108,054.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,031.60 : 196,693.20 = 71,982.60 : x
  2. Step 2: Convert to fraction form
    131,031.60/196,693.20 = 71,982.60/x
  3. Step 3: Cross multiply
    131,031.60x = 196,693.20 × 71,982.60
  4. Step 4: Simplify right side
    131,031.60x = 14,158,487,938.32
  5. Step 5: Solve for x
    x = 14,158,487,938.32/131,031.60
  6. Step 6: Final answer
    x = 108,054.00

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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.