Home / 155,433.24-214,505.75-91,769.67

Finding the Fourth Proportional to 155,433.24, 214,505.75 and 91,769.67

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Solution

The fourth proportional to 155,433.24, 214,505.75 and 91,769.67 is: 126,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,433.24 : 214,505.75 = 91,769.67 : x
  2. Step 2: Convert to fraction form
    155,433.24/214,505.75 = 91,769.67/x
  3. Step 3: Cross multiply
    155,433.24x = 214,505.75 × 91,769.67
  4. Step 4: Simplify right side
    155,433.24x = 19,685,121,890.60
  5. Step 5: Solve for x
    x = 19,685,121,890.60/155,433.24
  6. Step 6: Final answer
    x = 126,646.80

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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.