Home / 172,516.89-258,785.67-54,188.22

Finding the Fourth Proportional to 172,516.89, 258,785.67 and 54,188.22

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Solution

The fourth proportional to 172,516.89, 258,785.67 and 54,188.22 is: 81,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,516.89 : 258,785.67 = 54,188.22 : x
  2. Step 2: Convert to fraction form
    172,516.89/258,785.67 = 54,188.22/x
  3. Step 3: Cross multiply
    172,516.89x = 258,785.67 × 54,188.22
  4. Step 4: Simplify right side
    172,516.89x = 14,023,134,818.81
  5. Step 5: Solve for x
    x = 14,023,134,818.81/172,516.89
  6. Step 6: Final answer
    x = 81,285.58

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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.