Home / 105,893.05-158,839.63-66,477.84

Finding the Fourth Proportional to 105,893.05, 158,839.63 and 66,477.84

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Solution

The fourth proportional to 105,893.05, 158,839.63 and 66,477.84 is: 99,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,893.05 : 158,839.63 = 66,477.84 : x
  2. Step 2: Convert to fraction form
    105,893.05/158,839.63 = 66,477.84/x
  3. Step 3: Cross multiply
    105,893.05x = 158,839.63 × 66,477.84
  4. Step 4: Simplify right side
    105,893.05x = 10,559,315,342.60
  5. Step 5: Solve for x
    x = 10,559,315,342.60/105,893.05
  6. Step 6: Final answer
    x = 99,716.80

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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.