Home / 171,942.20-257,913.30-112,156.10

Finding the Fourth Proportional to 171,942.20, 257,913.30 and 112,156.10

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Solution

The fourth proportional to 171,942.20, 257,913.30 and 112,156.10 is: 168,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,942.20 : 257,913.30 = 112,156.10 : x
  2. Step 2: Convert to fraction form
    171,942.20/257,913.30 = 112,156.10/x
  3. Step 3: Cross multiply
    171,942.20x = 257,913.30 × 112,156.10
  4. Step 4: Simplify right side
    171,942.20x = 28,926,549,866.13
  5. Step 5: Solve for x
    x = 28,926,549,866.13/171,942.20
  6. Step 6: Final answer
    x = 168,234.15

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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.