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Finding the Fourth Proportional to 135,464.67, 186,939.27 and 75,035.12

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Solution

The fourth proportional to 135,464.67, 186,939.27 and 75,035.12 is: 103,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,464.67 : 186,939.27 = 75,035.12 : x
  2. Step 2: Convert to fraction form
    135,464.67/186,939.27 = 75,035.12/x
  3. Step 3: Cross multiply
    135,464.67x = 186,939.27 × 75,035.12
  4. Step 4: Simplify right side
    135,464.67x = 14,027,009,622.47
  5. Step 5: Solve for x
    x = 14,027,009,622.47/135,464.67
  6. Step 6: Final answer
    x = 103,547.36

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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.