Home / 451,153.74-676,731.12-135,610.64

Finding the Fourth Proportional to 451,153.74, 676,731.12 and 135,610.64

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Solution

The fourth proportional to 451,153.74, 676,731.12 and 135,610.64 is: 203,416.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,153.74 : 676,731.12 = 135,610.64 : x
  2. Step 2: Convert to fraction form
    451,153.74/676,731.12 = 135,610.64/x
  3. Step 3: Cross multiply
    451,153.74x = 676,731.12 × 135,610.64
  4. Step 4: Simplify right side
    451,153.74x = 91,771,941,982.32
  5. Step 5: Solve for x
    x = 91,771,941,982.32/451,153.74
  6. Step 6: Final answer
    x = 203,416.12

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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.