Home / 131,267.40-196,852.50-103,242

Finding the Fourth Proportional to 131,267.40, 196,852.50 and 103,242

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Solution

The fourth proportional to 131,267.40, 196,852.50 and 103,242 is: 154,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,267.40 : 196,852.50 = 103,242 : x
  2. Step 2: Convert to fraction form
    131,267.40/196,852.50 = 103,242/x
  3. Step 3: Cross multiply
    131,267.40x = 196,852.50 × 103,242
  4. Step 4: Simplify right side
    131,267.40x = 20,323,445,805
  5. Step 5: Solve for x
    x = 20,323,445,805/131,267.40
  6. Step 6: Final answer
    x = 154,824.78

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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.