Home / 134,148.10-200,930.55-81,465.70

Finding the Fourth Proportional to 134,148.10, 200,930.55 and 81,465.70

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Solution

The fourth proportional to 134,148.10, 200,930.55 and 81,465.70 is: 122,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,148.10 : 200,930.55 = 81,465.70 : x
  2. Step 2: Convert to fraction form
    134,148.10/200,930.55 = 81,465.70/x
  3. Step 3: Cross multiply
    134,148.10x = 200,930.55 × 81,465.70
  4. Step 4: Simplify right side
    134,148.10x = 16,368,947,907.14
  5. Step 5: Solve for x
    x = 16,368,947,907.14/134,148.10
  6. Step 6: Final answer
    x = 122,021.47

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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.