Home / 172,208.08-258,172.76-53,818.48

Finding the Fourth Proportional to 172,208.08, 258,172.76 and 53,818.48

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Solution

The fourth proportional to 172,208.08, 258,172.76 and 53,818.48 is: 80,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,208.08 : 258,172.76 = 53,818.48 : x
  2. Step 2: Convert to fraction form
    172,208.08/258,172.76 = 53,818.48/x
  3. Step 3: Cross multiply
    172,208.08x = 258,172.76 × 53,818.48
  4. Step 4: Simplify right side
    172,208.08x = 13,894,465,520.60
  5. Step 5: Solve for x
    x = 13,894,465,520.60/172,208.08
  6. Step 6: Final answer
    x = 80,684.17

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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.