Home / 133,530.12-200,108.34-77,355.27

Finding the Fourth Proportional to 133,530.12, 200,108.34 and 77,355.27

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Solution

The fourth proportional to 133,530.12, 200,108.34 and 77,355.27 is: 115,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,530.12 : 200,108.34 = 77,355.27 : x
  2. Step 2: Convert to fraction form
    133,530.12/200,108.34 = 77,355.27/x
  3. Step 3: Cross multiply
    133,530.12x = 200,108.34 × 77,355.27
  4. Step 4: Simplify right side
    133,530.12x = 15,479,434,669.95
  5. Step 5: Solve for x
    x = 15,479,434,669.95/133,530.12
  6. Step 6: Final answer
    x = 115,924.67

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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.