Home / 172,178.36-258,267.19-45,818.61

Finding the Fourth Proportional to 172,178.36, 258,267.19 and 45,818.61

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Solution

The fourth proportional to 172,178.36, 258,267.19 and 45,818.61 is: 68,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,178.36 : 258,267.19 = 45,818.61 : x
  2. Step 2: Convert to fraction form
    172,178.36/258,267.19 = 45,818.61/x
  3. Step 3: Cross multiply
    172,178.36x = 258,267.19 × 45,818.61
  4. Step 4: Simplify right side
    172,178.36x = 11,833,443,654.41
  5. Step 5: Solve for x
    x = 11,833,443,654.41/172,178.36
  6. Step 6: Final answer
    x = 68,727.82

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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.