Home / 135,284.46-186,676.56-74,847.12

Finding the Fourth Proportional to 135,284.46, 186,676.56 and 74,847.12

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Solution

The fourth proportional to 135,284.46, 186,676.56 and 74,847.12 is: 103,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,284.46 : 186,676.56 = 74,847.12 : x
  2. Step 2: Convert to fraction form
    135,284.46/186,676.56 = 74,847.12/x
  3. Step 3: Cross multiply
    135,284.46x = 186,676.56 × 74,847.12
  4. Step 4: Simplify right side
    135,284.46x = 13,972,202,887.51
  5. Step 5: Solve for x
    x = 13,972,202,887.51/135,284.46
  6. Step 6: Final answer
    x = 103,280.18

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1.5x scale

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.