Home / 172,330.68-258,499.26-53,999.40

Finding the Fourth Proportional to 172,330.68, 258,499.26 and 53,999.40

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Solution

The fourth proportional to 172,330.68, 258,499.26 and 53,999.40 is: 81,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,330.68 : 258,499.26 = 53,999.40 : x
  2. Step 2: Convert to fraction form
    172,330.68/258,499.26 = 53,999.40/x
  3. Step 3: Cross multiply
    172,330.68x = 258,499.26 × 53,999.40
  4. Step 4: Simplify right side
    172,330.68x = 13,958,804,940.44
  5. Step 5: Solve for x
    x = 13,958,804,940.44/172,330.68
  6. Step 6: Final answer
    x = 81,000.12

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1.5x scale

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.