Home / 137,442.54-206,243.10-74,262.84

Finding the Fourth Proportional to 137,442.54, 206,243.10 and 74,262.84

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Solution

The fourth proportional to 137,442.54, 206,243.10 and 74,262.84 is: 111,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,442.54 : 206,243.10 = 74,262.84 : x
  2. Step 2: Convert to fraction form
    137,442.54/206,243.10 = 74,262.84/x
  3. Step 3: Cross multiply
    137,442.54x = 206,243.10 × 74,262.84
  4. Step 4: Simplify right side
    137,442.54x = 15,316,198,336.40
  5. Step 5: Solve for x
    x = 15,316,198,336.40/137,442.54
  6. Step 6: Final answer
    x = 111,437.10

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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.