Home / 135,281.60-186,694.10-74,851.26

Finding the Fourth Proportional to 135,281.60, 186,694.10 and 74,851.26

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Solution

The fourth proportional to 135,281.60, 186,694.10 and 74,851.26 is: 103,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,281.60 : 186,694.10 = 74,851.26 : x
  2. Step 2: Convert to fraction form
    135,281.60/186,694.10 = 74,851.26/x
  3. Step 3: Cross multiply
    135,281.60x = 186,694.10 × 74,851.26
  4. Step 4: Simplify right side
    135,281.60x = 13,974,288,619.57
  5. Step 5: Solve for x
    x = 13,974,288,619.57/135,281.60
  6. Step 6: Final answer
    x = 103,297.78

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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.