Home / 103,515.16-155,305.55-36,953.81

Finding the Fourth Proportional to 103,515.16, 155,305.55 and 36,953.81

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Solution

The fourth proportional to 103,515.16, 155,305.55 and 36,953.81 is: 55,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.16 : 155,305.55 = 36,953.81 : x
  2. Step 2: Convert to fraction form
    103,515.16/155,305.55 = 36,953.81/x
  3. Step 3: Cross multiply
    103,515.16x = 155,305.55 × 36,953.81
  4. Step 4: Simplify right side
    103,515.16x = 5,739,131,990.14
  5. Step 5: Solve for x
    x = 5,739,131,990.14/103,515.16
  6. Step 6: Final answer
    x = 55,442.43

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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.