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Finding the Fourth Proportional to 188,473.82, 260,154.45 and 120,673.40

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Solution

The fourth proportional to 188,473.82, 260,154.45 and 120,673.40 is: 166,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,473.82 : 260,154.45 = 120,673.40 : x
  2. Step 2: Convert to fraction form
    188,473.82/260,154.45 = 120,673.40/x
  3. Step 3: Cross multiply
    188,473.82x = 260,154.45 × 120,673.40
  4. Step 4: Simplify right side
    188,473.82x = 31,393,720,705.86
  5. Step 5: Solve for x
    x = 31,393,720,705.86/188,473.82
  6. Step 6: Final answer
    x = 166,568.08

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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.