Home / 135,158.64-186,511.38-74,725.75

Finding the Fourth Proportional to 135,158.64, 186,511.38 and 74,725.75

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Solution

The fourth proportional to 135,158.64, 186,511.38 and 74,725.75 is: 103,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158.64 : 186,511.38 = 74,725.75 : x
  2. Step 2: Convert to fraction form
    135,158.64/186,511.38 = 74,725.75/x
  3. Step 3: Cross multiply
    135,158.64x = 186,511.38 × 74,725.75
  4. Step 4: Simplify right side
    135,158.64x = 13,937,202,754.04
  5. Step 5: Solve for x
    x = 13,937,202,754.04/135,158.64
  6. Step 6: Final answer
    x = 103,117.36

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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.