Home / 103,640.04-154,651.77-92,469.96

Finding the Fourth Proportional to 103,640.04, 154,651.77 and 92,469.96

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Solution

The fourth proportional to 103,640.04, 154,651.77 and 92,469.96 is: 137,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.04 : 154,651.77 = 92,469.96 : x
  2. Step 2: Convert to fraction form
    103,640.04/154,651.77 = 92,469.96/x
  3. Step 3: Cross multiply
    103,640.04x = 154,651.77 × 92,469.96
  4. Step 4: Simplify right side
    103,640.04x = 14,300,642,985.83
  5. Step 5: Solve for x
    x = 14,300,642,985.83/103,640.04
  6. Step 6: Final answer
    x = 137,983.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.