Home / 339,880.12-509,711.04-112,124.54

Finding the Fourth Proportional to 339,880.12, 509,711.04 and 112,124.54

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Solution

The fourth proportional to 339,880.12, 509,711.04 and 112,124.54 is: 168,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,880.12 : 509,711.04 = 112,124.54 : x
  2. Step 2: Convert to fraction form
    339,880.12/509,711.04 = 112,124.54/x
  3. Step 3: Cross multiply
    339,880.12x = 509,711.04 × 112,124.54
  4. Step 4: Simplify right side
    339,880.12x = 57,151,115,332.30
  5. Step 5: Solve for x
    x = 57,151,115,332.30/339,880.12
  6. Step 6: Final answer
    x = 168,150.81

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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.