Home / 102,015.15-153,022.53-27,135.38

Finding the Fourth Proportional to 102,015.15, 153,022.53 and 27,135.38

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Solution

The fourth proportional to 102,015.15, 153,022.53 and 27,135.38 is: 40,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.15 : 153,022.53 = 27,135.38 : x
  2. Step 2: Convert to fraction form
    102,015.15/153,022.53 = 27,135.38/x
  3. Step 3: Cross multiply
    102,015.15x = 153,022.53 × 27,135.38
  4. Step 4: Simplify right side
    102,015.15x = 4,152,324,500.11
  5. Step 5: Solve for x
    x = 4,152,324,500.11/102,015.15
  6. Step 6: Final answer
    x = 40,703.02

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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.