Home / 89,198.76-123,158.87-57,423.02

Finding the Fourth Proportional to 89,198.76, 123,158.87 and 57,423.02

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Solution

The fourth proportional to 89,198.76, 123,158.87 and 57,423.02 is: 79,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,198.76 : 123,158.87 = 57,423.02 : x
  2. Step 2: Convert to fraction form
    89,198.76/123,158.87 = 57,423.02/x
  3. Step 3: Cross multiply
    89,198.76x = 123,158.87 × 57,423.02
  4. Step 4: Simplify right side
    89,198.76x = 7,072,153,352.28
  5. Step 5: Solve for x
    x = 7,072,153,352.28/89,198.76
  6. Step 6: Final answer
    x = 79,285.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.