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Finding the Fourth Proportional to 171,495.12, 257,242.84 and 71,600.86

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Solution

The fourth proportional to 171,495.12, 257,242.84 and 71,600.86 is: 107,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,495.12 : 257,242.84 = 71,600.86 : x
  2. Step 2: Convert to fraction form
    171,495.12/257,242.84 = 71,600.86/x
  3. Step 3: Cross multiply
    171,495.12x = 257,242.84 × 71,600.86
  4. Step 4: Simplify right side
    171,495.12x = 18,418,808,715.39
  5. Step 5: Solve for x
    x = 18,418,808,715.39/171,495.12
  6. Step 6: Final answer
    x = 107,401.36

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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.