Home / 172,070.48-258,206.04-72,222.96

Finding the Fourth Proportional to 172,070.48, 258,206.04 and 72,222.96

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Solution

The fourth proportional to 172,070.48, 258,206.04 and 72,222.96 is: 108,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,070.48 : 258,206.04 = 72,222.96 : x
  2. Step 2: Convert to fraction form
    172,070.48/258,206.04 = 72,222.96/x
  3. Step 3: Cross multiply
    172,070.48x = 258,206.04 × 72,222.96
  4. Step 4: Simplify right side
    172,070.48x = 18,648,404,498.68
  5. Step 5: Solve for x
    x = 18,648,404,498.68/172,070.48
  6. Step 6: Final answer
    x = 108,376.55

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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.