Home / 107,736.84-161,454-85,148.22

Finding the Fourth Proportional to 107,736.84, 161,454 and 85,148.22

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Solution

The fourth proportional to 107,736.84, 161,454 and 85,148.22 is: 127,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,736.84 : 161,454 = 85,148.22 : x
  2. Step 2: Convert to fraction form
    107,736.84/161,454 = 85,148.22/x
  3. Step 3: Cross multiply
    107,736.84x = 161,454 × 85,148.22
  4. Step 4: Simplify right side
    107,736.84x = 13,747,520,711.88
  5. Step 5: Solve for x
    x = 13,747,520,711.88/107,736.84
  6. Step 6: Final answer
    x = 127,602.78

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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.