Home / 102,190.78-153,286.21-48,870.15

Finding the Fourth Proportional to 102,190.78, 153,286.21 and 48,870.15

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Solution

The fourth proportional to 102,190.78, 153,286.21 and 48,870.15 is: 73,305.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,190.78 : 153,286.21 = 48,870.15 : x
  2. Step 2: Convert to fraction form
    102,190.78/153,286.21 = 48,870.15/x
  3. Step 3: Cross multiply
    102,190.78x = 153,286.21 × 48,870.15
  4. Step 4: Simplify right side
    102,190.78x = 7,491,120,075.63
  5. Step 5: Solve for x
    x = 7,491,120,075.63/102,190.78
  6. Step 6: Final answer
    x = 73,305.24

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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.