Home / 218,669.35-301,769.54-123,170.35

Finding the Fourth Proportional to 218,669.35, 301,769.54 and 123,170.35

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Solution

The fourth proportional to 218,669.35, 301,769.54 and 123,170.35 is: 169,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,669.35 : 301,769.54 = 123,170.35 : x
  2. Step 2: Convert to fraction form
    218,669.35/301,769.54 = 123,170.35/x
  3. Step 3: Cross multiply
    218,669.35x = 301,769.54 × 123,170.35
  4. Step 4: Simplify right side
    218,669.35x = 37,169,059,861.14
  5. Step 5: Solve for x
    x = 37,169,059,861.14/218,669.35
  6. Step 6: Final answer
    x = 169,978.37

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1.5x scale

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.