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Finding the Fourth Proportional to 116,858.40, 175,028.40 and 90,477.60

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Solution

The fourth proportional to 116,858.40, 175,028.40 and 90,477.60 is: 135,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,858.40 : 175,028.40 = 90,477.60 : x
  2. Step 2: Convert to fraction form
    116,858.40/175,028.40 = 90,477.60/x
  3. Step 3: Cross multiply
    116,858.40x = 175,028.40 × 90,477.60
  4. Step 4: Simplify right side
    116,858.40x = 15,836,149,563.84
  5. Step 5: Solve for x
    x = 15,836,149,563.84/116,858.40
  6. Step 6: Final answer
    x = 135,515.71

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1.5x scale

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.