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Finding the Fourth Proportional to 135,027, 186,335.06 and 74,600.19

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Solution

The fourth proportional to 135,027, 186,335.06 and 74,600.19 is: 102,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,027 : 186,335.06 = 74,600.19 : x
  2. Step 2: Convert to fraction form
    135,027/186,335.06 = 74,600.19/x
  3. Step 3: Cross multiply
    135,027x = 186,335.06 × 74,600.19
  4. Step 4: Simplify right side
    135,027x = 13,900,630,506.66
  5. Step 5: Solve for x
    x = 13,900,630,506.66/135,027
  6. Step 6: Final answer
    x = 102,947.04

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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.