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Finding the Fourth Proportional to 135,694.60, 187,280.96 and 75,284.70

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Solution

The fourth proportional to 135,694.60, 187,280.96 and 75,284.70 is: 103,905.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,694.60 : 187,280.96 = 75,284.70 : x
  2. Step 2: Convert to fraction form
    135,694.60/187,280.96 = 75,284.70/x
  3. Step 3: Cross multiply
    135,694.60x = 187,280.96 × 75,284.70
  4. Step 4: Simplify right side
    135,694.60x = 14,099,390,889.31
  5. Step 5: Solve for x
    x = 14,099,390,889.31/135,694.60
  6. Step 6: Final answer
    x = 103,905.32

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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.