Home / 136,807.23-188,760.61-80,207.67

Finding the Fourth Proportional to 136,807.23, 188,760.61 and 80,207.67

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Solution

The fourth proportional to 136,807.23, 188,760.61 and 80,207.67 is: 110,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,807.23 : 188,760.61 = 80,207.67 : x
  2. Step 2: Convert to fraction form
    136,807.23/188,760.61 = 80,207.67/x
  3. Step 3: Cross multiply
    136,807.23x = 188,760.61 × 80,207.67
  4. Step 4: Simplify right side
    136,807.23x = 15,140,048,715.88
  5. Step 5: Solve for x
    x = 15,140,048,715.88/136,807.23
  6. Step 6: Final answer
    x = 110,667.02

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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.