Home / 172,318.74-258,478.20-53,999.34

Finding the Fourth Proportional to 172,318.74, 258,478.20 and 53,999.34

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Solution

The fourth proportional to 172,318.74, 258,478.20 and 53,999.34 is: 80,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,318.74 : 258,478.20 = 53,999.34 : x
  2. Step 2: Convert to fraction form
    172,318.74/258,478.20 = 53,999.34/x
  3. Step 3: Cross multiply
    172,318.74x = 258,478.20 × 53,999.34
  4. Step 4: Simplify right side
    172,318.74x = 13,957,652,204.39
  5. Step 5: Solve for x
    x = 13,957,652,204.39/172,318.74
  6. Step 6: Final answer
    x = 80,999.04

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1.5x scale

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.