Home / 131,113.20-196,669.80-120,975.60

Finding the Fourth Proportional to 131,113.20, 196,669.80 and 120,975.60

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Solution

The fourth proportional to 131,113.20, 196,669.80 and 120,975.60 is: 181,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,113.20 : 196,669.80 = 120,975.60 : x
  2. Step 2: Convert to fraction form
    131,113.20/196,669.80 = 120,975.60/x
  3. Step 3: Cross multiply
    131,113.20x = 196,669.80 × 120,975.60
  4. Step 4: Simplify right side
    131,113.20x = 23,792,247,056.88
  5. Step 5: Solve for x
    x = 23,792,247,056.88/131,113.20
  6. Step 6: Final answer
    x = 181,463.40

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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.