Home / 102,765.10-154,145.49-47,361.10

Finding the Fourth Proportional to 102,765.10, 154,145.49 and 47,361.10

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Solution

The fourth proportional to 102,765.10, 154,145.49 and 47,361.10 is: 71,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,765.10 : 154,145.49 = 47,361.10 : x
  2. Step 2: Convert to fraction form
    102,765.10/154,145.49 = 47,361.10/x
  3. Step 3: Cross multiply
    102,765.10x = 154,145.49 × 47,361.10
  4. Step 4: Simplify right side
    102,765.10x = 7,300,499,966.44
  5. Step 5: Solve for x
    x = 7,300,499,966.44/102,765.10
  6. Step 6: Final answer
    x = 71,040.65

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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.