Home / 102,109.76-140,914.94-56,171.43

Finding the Fourth Proportional to 102,109.76, 140,914.94 and 56,171.43

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Solution

The fourth proportional to 102,109.76, 140,914.94 and 56,171.43 is: 77,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,109.76 : 140,914.94 = 56,171.43 : x
  2. Step 2: Convert to fraction form
    102,109.76/140,914.94 = 56,171.43/x
  3. Step 3: Cross multiply
    102,109.76x = 140,914.94 × 56,171.43
  4. Step 4: Simplify right side
    102,109.76x = 7,915,393,762.08
  5. Step 5: Solve for x
    x = 7,915,393,762.08/102,109.76
  6. Step 6: Final answer
    x = 77,518.48

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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.