Home / 172,788.18-259,004.53-66,147.02

Finding the Fourth Proportional to 172,788.18, 259,004.53 and 66,147.02

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Solution

The fourth proportional to 172,788.18, 259,004.53 and 66,147.02 is: 99,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,788.18 : 259,004.53 = 66,147.02 : x
  2. Step 2: Convert to fraction form
    172,788.18/259,004.53 = 66,147.02/x
  3. Step 3: Cross multiply
    172,788.18x = 259,004.53 × 66,147.02
  4. Step 4: Simplify right side
    172,788.18x = 17,132,377,826.00
  5. Step 5: Solve for x
    x = 17,132,377,826.00/172,788.18
  6. Step 6: Final answer
    x = 99,152.49

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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.