Home / 99,310.21-148,918.49-36,085.75

Finding the Fourth Proportional to 99,310.21, 148,918.49 and 36,085.75

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Solution

The fourth proportional to 99,310.21, 148,918.49 and 36,085.75 is: 54,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,310.21 : 148,918.49 = 36,085.75 : x
  2. Step 2: Convert to fraction form
    99,310.21/148,918.49 = 36,085.75/x
  3. Step 3: Cross multiply
    99,310.21x = 148,918.49 × 36,085.75
  4. Step 4: Simplify right side
    99,310.21x = 5,373,835,400.52
  5. Step 5: Solve for x
    x = 5,373,835,400.52/99,310.21
  6. Step 6: Final answer
    x = 54,111.61

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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.