Home / 172,359.12-258,543-47,701.20

Finding the Fourth Proportional to 172,359.12, 258,543 and 47,701.20

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Solution

The fourth proportional to 172,359.12, 258,543 and 47,701.20 is: 71,553.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,359.12 : 258,543 = 47,701.20 : x
  2. Step 2: Convert to fraction form
    172,359.12/258,543 = 47,701.20/x
  3. Step 3: Cross multiply
    172,359.12x = 258,543 × 47,701.20
  4. Step 4: Simplify right side
    172,359.12x = 12,332,811,351.60
  5. Step 5: Solve for x
    x = 12,332,811,351.60/172,359.12
  6. Step 6: Final answer
    x = 71,553.00

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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.