Home / 172,431.50-258,646.98-54,111.92

Finding the Fourth Proportional to 172,431.50, 258,646.98 and 54,111.92

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Solution

The fourth proportional to 172,431.50, 258,646.98 and 54,111.92 is: 81,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,431.50 : 258,646.98 = 54,111.92 : x
  2. Step 2: Convert to fraction form
    172,431.50/258,646.98 = 54,111.92/x
  3. Step 3: Cross multiply
    172,431.50x = 258,646.98 × 54,111.92
  4. Step 4: Simplify right side
    172,431.50x = 13,995,884,690.00
  5. Step 5: Solve for x
    x = 13,995,884,690.00/172,431.50
  6. Step 6: Final answer
    x = 81,167.80

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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.