Home / 172,084.21-258,068.09-65,442.82

Finding the Fourth Proportional to 172,084.21, 258,068.09 and 65,442.82

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Solution

The fourth proportional to 172,084.21, 258,068.09 and 65,442.82 is: 98,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,084.21 : 258,068.09 = 65,442.82 : x
  2. Step 2: Convert to fraction form
    172,084.21/258,068.09 = 65,442.82/x
  3. Step 3: Cross multiply
    172,084.21x = 258,068.09 × 65,442.82
  4. Step 4: Simplify right side
    172,084.21x = 16,888,704,376.57
  5. Step 5: Solve for x
    x = 16,888,704,376.57/172,084.21
  6. Step 6: Final answer
    x = 98,142.09

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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.