Home / 168,732.68-253,224.16-79,986.36

Finding the Fourth Proportional to 168,732.68, 253,224.16 and 79,986.36

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Solution

The fourth proportional to 168,732.68, 253,224.16 and 79,986.36 is: 120,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,732.68 : 253,224.16 = 79,986.36 : x
  2. Step 2: Convert to fraction form
    168,732.68/253,224.16 = 79,986.36/x
  3. Step 3: Cross multiply
    168,732.68x = 253,224.16 × 79,986.36
  4. Step 4: Simplify right side
    168,732.68x = 20,254,478,822.46
  5. Step 5: Solve for x
    x = 20,254,478,822.46/168,732.68
  6. Step 6: Final answer
    x = 120,038.86

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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.