Home / 172,442.08-258,704.40-54,113.20

Finding the Fourth Proportional to 172,442.08, 258,704.40 and 54,113.20

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Solution

The fourth proportional to 172,442.08, 258,704.40 and 54,113.20 is: 81,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,442.08 : 258,704.40 = 54,113.20 : x
  2. Step 2: Convert to fraction form
    172,442.08/258,704.40 = 54,113.20/x
  3. Step 3: Cross multiply
    172,442.08x = 258,704.40 × 54,113.20
  4. Step 4: Simplify right side
    172,442.08x = 13,999,322,938.08
  5. Step 5: Solve for x
    x = 13,999,322,938.08/172,442.08
  6. Step 6: Final answer
    x = 81,182.75

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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.