Home / 148,142.76-204,435.84-80,159.64

Finding the Fourth Proportional to 148,142.76, 204,435.84 and 80,159.64

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Solution

The fourth proportional to 148,142.76, 204,435.84 and 80,159.64 is: 110,619.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,142.76 : 204,435.84 = 80,159.64 : x
  2. Step 2: Convert to fraction form
    148,142.76/204,435.84 = 80,159.64/x
  3. Step 3: Cross multiply
    148,142.76x = 204,435.84 × 80,159.64
  4. Step 4: Simplify right side
    148,142.76x = 16,387,503,337.50
  5. Step 5: Solve for x
    x = 16,387,503,337.50/148,142.76
  6. Step 6: Final answer
    x = 110,619.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.