Home / 171,885.24-257,777.94-72,042.72

Finding the Fourth Proportional to 171,885.24, 257,777.94 and 72,042.72

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Solution

The fourth proportional to 171,885.24, 257,777.94 and 72,042.72 is: 108,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,885.24 : 257,777.94 = 72,042.72 : x
  2. Step 2: Convert to fraction form
    171,885.24/257,777.94 = 72,042.72/x
  3. Step 3: Cross multiply
    171,885.24x = 257,777.94 × 72,042.72
  4. Step 4: Simplify right side
    171,885.24x = 18,571,023,953.60
  5. Step 5: Solve for x
    x = 18,571,023,953.60/171,885.24
  6. Step 6: Final answer
    x = 108,043.16

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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.