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Finding the Fourth Proportional to 188,832.68, 260,530.40 and 107,147.42

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Solution

The fourth proportional to 188,832.68, 260,530.40 and 107,147.42 is: 147,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,832.68 : 260,530.40 = 107,147.42 : x
  2. Step 2: Convert to fraction form
    188,832.68/260,530.40 = 107,147.42/x
  3. Step 3: Cross multiply
    188,832.68x = 260,530.40 × 107,147.42
  4. Step 4: Simplify right side
    188,832.68x = 27,915,160,191.57
  5. Step 5: Solve for x
    x = 27,915,160,191.57/188,832.68
  6. Step 6: Final answer
    x = 147,830.13

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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.