Home / 168,720.65-253,029.85-88,715.51

Finding the Fourth Proportional to 168,720.65, 253,029.85 and 88,715.51

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Solution

The fourth proportional to 168,720.65, 253,029.85 and 88,715.51 is: 133,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,720.65 : 253,029.85 = 88,715.51 : x
  2. Step 2: Convert to fraction form
    168,720.65/253,029.85 = 88,715.51/x
  3. Step 3: Cross multiply
    168,720.65x = 253,029.85 × 88,715.51
  4. Step 4: Simplify right side
    168,720.65x = 22,447,672,187.97
  5. Step 5: Solve for x
    x = 22,447,672,187.97/168,720.65
  6. Step 6: Final answer
    x = 133,046.38

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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.