Home / 168,861.23-253,292.13-69,021.33

Finding the Fourth Proportional to 168,861.23, 253,292.13 and 69,021.33

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Solution

The fourth proportional to 168,861.23, 253,292.13 and 69,021.33 is: 103,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,861.23 : 253,292.13 = 69,021.33 : x
  2. Step 2: Convert to fraction form
    168,861.23/253,292.13 = 69,021.33/x
  3. Step 3: Cross multiply
    168,861.23x = 253,292.13 × 69,021.33
  4. Step 4: Simplify right side
    168,861.23x = 17,482,559,691.13
  5. Step 5: Solve for x
    x = 17,482,559,691.13/168,861.23
  6. Step 6: Final answer
    x = 103,532.11

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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.