Home / 163,845.38-245,863.60-69,069.78

Finding the Fourth Proportional to 163,845.38, 245,863.60 and 69,069.78

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Solution

The fourth proportional to 163,845.38, 245,863.60 and 69,069.78 is: 103,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,845.38 : 245,863.60 = 69,069.78 : x
  2. Step 2: Convert to fraction form
    163,845.38/245,863.60 = 69,069.78/x
  3. Step 3: Cross multiply
    163,845.38x = 245,863.60 × 69,069.78
  4. Step 4: Simplify right side
    163,845.38x = 16,981,744,762.01
  5. Step 5: Solve for x
    x = 16,981,744,762.01/163,845.38
  6. Step 6: Final answer
    x = 103,644.94

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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.