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Finding the Fourth Proportional to 171,423.36, 257,202.72 and 53,103.93

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Solution

The fourth proportional to 171,423.36, 257,202.72 and 53,103.93 is: 79,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,423.36 : 257,202.72 = 53,103.93 : x
  2. Step 2: Convert to fraction form
    171,423.36/257,202.72 = 53,103.93/x
  3. Step 3: Cross multiply
    171,423.36x = 257,202.72 × 53,103.93
  4. Step 4: Simplify right side
    171,423.36x = 13,658,475,238.69
  5. Step 5: Solve for x
    x = 13,658,475,238.69/171,423.36
  6. Step 6: Final answer
    x = 79,676.86

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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.