Home / 105,629.88-158,338.14-66,214.62

Finding the Fourth Proportional to 105,629.88, 158,338.14 and 66,214.62

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Solution

The fourth proportional to 105,629.88, 158,338.14 and 66,214.62 is: 99,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,629.88 : 158,338.14 = 66,214.62 : x
  2. Step 2: Convert to fraction form
    105,629.88/158,338.14 = 66,214.62/x
  3. Step 3: Cross multiply
    105,629.88x = 158,338.14 × 66,214.62
  4. Step 4: Simplify right side
    105,629.88x = 10,484,299,771.61
  5. Step 5: Solve for x
    x = 10,484,299,771.61/105,629.88
  6. Step 6: Final answer
    x = 99,255.06

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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.