Home / 171,941.20-257,911.80-112,155.10

Finding the Fourth Proportional to 171,941.20, 257,911.80 and 112,155.10

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Solution

The fourth proportional to 171,941.20, 257,911.80 and 112,155.10 is: 168,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,941.20 : 257,911.80 = 112,155.10 : x
  2. Step 2: Convert to fraction form
    171,941.20/257,911.80 = 112,155.10/x
  3. Step 3: Cross multiply
    171,941.20x = 257,911.80 × 112,155.10
  4. Step 4: Simplify right side
    171,941.20x = 28,926,123,720.18
  5. Step 5: Solve for x
    x = 28,926,123,720.18/171,941.20
  6. Step 6: Final answer
    x = 168,232.65

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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.