Home / 102,757.48-154,150.63-31,685.78

Finding the Fourth Proportional to 102,757.48, 154,150.63 and 31,685.78

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Solution

The fourth proportional to 102,757.48, 154,150.63 and 31,685.78 is: 47,533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,757.48 : 154,150.63 = 31,685.78 : x
  2. Step 2: Convert to fraction form
    102,757.48/154,150.63 = 31,685.78/x
  3. Step 3: Cross multiply
    102,757.48x = 154,150.63 × 31,685.78
  4. Step 4: Simplify right side
    102,757.48x = 4,884,383,255.20
  5. Step 5: Solve for x
    x = 4,884,383,255.20/102,757.48
  6. Step 6: Final answer
    x = 47,533.12

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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.