Home / 148,995.11-205,607.58-81,012.14

Finding the Fourth Proportional to 148,995.11, 205,607.58 and 81,012.14

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Solution

The fourth proportional to 148,995.11, 205,607.58 and 81,012.14 is: 111,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,995.11 : 205,607.58 = 81,012.14 : x
  2. Step 2: Convert to fraction form
    148,995.11/205,607.58 = 81,012.14/x
  3. Step 3: Cross multiply
    148,995.11x = 205,607.58 × 81,012.14
  4. Step 4: Simplify right side
    148,995.11x = 16,656,709,576.33
  5. Step 5: Solve for x
    x = 16,656,709,576.33/148,995.11
  6. Step 6: Final answer
    x = 111,793.67

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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.