Home / 131,159.20-197,176.20-111,913.60

Finding the Fourth Proportional to 131,159.20, 197,176.20 and 111,913.60

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Solution

The fourth proportional to 131,159.20, 197,176.20 and 111,913.60 is: 168,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,159.20 : 197,176.20 = 111,913.60 : x
  2. Step 2: Convert to fraction form
    131,159.20/197,176.20 = 111,913.60/x
  3. Step 3: Cross multiply
    131,159.20x = 197,176.20 × 111,913.60
  4. Step 4: Simplify right side
    131,159.20x = 22,066,698,376.32
  5. Step 5: Solve for x
    x = 22,066,698,376.32/131,159.20
  6. Step 6: Final answer
    x = 168,243.62

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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.