Home / 113,489.28-170,272.80-43,388.64

Finding the Fourth Proportional to 113,489.28, 170,272.80 and 43,388.64

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Solution

The fourth proportional to 113,489.28, 170,272.80 and 43,388.64 is: 65,097.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,489.28 : 170,272.80 = 43,388.64 : x
  2. Step 2: Convert to fraction form
    113,489.28/170,272.80 = 43,388.64/x
  3. Step 3: Cross multiply
    113,489.28x = 170,272.80 × 43,388.64
  4. Step 4: Simplify right side
    113,489.28x = 7,387,905,220.99
  5. Step 5: Solve for x
    x = 7,387,905,220.99/113,489.28
  6. Step 6: Final answer
    x = 65,097.82

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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.