Home / 102,755.22-153,890.10-71,047.23

Finding the Fourth Proportional to 102,755.22, 153,890.10 and 71,047.23

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Solution

The fourth proportional to 102,755.22, 153,890.10 and 71,047.23 is: 106,403.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,755.22 : 153,890.10 = 71,047.23 : x
  2. Step 2: Convert to fraction form
    102,755.22/153,890.10 = 71,047.23/x
  3. Step 3: Cross multiply
    102,755.22x = 153,890.10 × 71,047.23
  4. Step 4: Simplify right side
    102,755.22x = 10,933,465,329.42
  5. Step 5: Solve for x
    x = 10,933,465,329.42/102,755.22
  6. Step 6: Final answer
    x = 106,403.02

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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.