Home / 103,884.06-143,360.04-56,137.38

Finding the Fourth Proportional to 103,884.06, 143,360.04 and 56,137.38

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Solution

The fourth proportional to 103,884.06, 143,360.04 and 56,137.38 is: 77,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,884.06 : 143,360.04 = 56,137.38 : x
  2. Step 2: Convert to fraction form
    103,884.06/143,360.04 = 56,137.38/x
  3. Step 3: Cross multiply
    103,884.06x = 143,360.04 × 56,137.38
  4. Step 4: Simplify right side
    103,884.06x = 8,047,857,042.30
  5. Step 5: Solve for x
    x = 8,047,857,042.30/103,884.06
  6. Step 6: Final answer
    x = 77,469.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.