Home / 153,736.25-212,161.28-89,200.61

Finding the Fourth Proportional to 153,736.25, 212,161.28 and 89,200.61

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Solution

The fourth proportional to 153,736.25, 212,161.28 and 89,200.61 is: 123,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,736.25 : 212,161.28 = 89,200.61 : x
  2. Step 2: Convert to fraction form
    153,736.25/212,161.28 = 89,200.61/x
  3. Step 3: Cross multiply
    153,736.25x = 212,161.28 × 89,200.61
  4. Step 4: Simplify right side
    153,736.25x = 18,924,914,883.18
  5. Step 5: Solve for x
    x = 18,924,914,883.18/153,736.25
  6. Step 6: Final answer
    x = 123,099.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.