Home / 133,516.20-199,982.70-103,700.10

Finding the Fourth Proportional to 133,516.20, 199,982.70 and 103,700.10

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Solution

The fourth proportional to 133,516.20, 199,982.70 and 103,700.10 is: 155,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,516.20 : 199,982.70 = 103,700.10 : x
  2. Step 2: Convert to fraction form
    133,516.20/199,982.70 = 103,700.10/x
  3. Step 3: Cross multiply
    133,516.20x = 199,982.70 × 103,700.10
  4. Step 4: Simplify right side
    133,516.20x = 20,738,225,988.27
  5. Step 5: Solve for x
    x = 20,738,225,988.27/133,516.20
  6. Step 6: Final answer
    x = 155,323.67

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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.