Home / 132,938.67-199,446.62-42,979.47

Finding the Fourth Proportional to 132,938.67, 199,446.62 and 42,979.47

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Solution

The fourth proportional to 132,938.67, 199,446.62 and 42,979.47 is: 64,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,938.67 : 199,446.62 = 42,979.47 : x
  2. Step 2: Convert to fraction form
    132,938.67/199,446.62 = 42,979.47/x
  3. Step 3: Cross multiply
    132,938.67x = 199,446.62 × 42,979.47
  4. Step 4: Simplify right side
    132,938.67x = 8,572,109,805.99
  5. Step 5: Solve for x
    x = 8,572,109,805.99/132,938.67
  6. Step 6: Final answer
    x = 64,481.69

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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.