Home / 103,809.24-155,689.92-40,630.86

Finding the Fourth Proportional to 103,809.24, 155,689.92 and 40,630.86

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Solution

The fourth proportional to 103,809.24, 155,689.92 and 40,630.86 is: 60,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.24 : 155,689.92 = 40,630.86 : x
  2. Step 2: Convert to fraction form
    103,809.24/155,689.92 = 40,630.86/x
  3. Step 3: Cross multiply
    103,809.24x = 155,689.92 × 40,630.86
  4. Step 4: Simplify right side
    103,809.24x = 6,325,815,342.93
  5. Step 5: Solve for x
    x = 6,325,815,342.93/103,809.24
  6. Step 6: Final answer
    x = 60,936.92

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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.