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Finding the Fourth Proportional to 120,843.40, 181,265.10 and 101,160.40

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Solution

The fourth proportional to 120,843.40, 181,265.10 and 101,160.40 is: 151,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,843.40 : 181,265.10 = 101,160.40 : x
  2. Step 2: Convert to fraction form
    120,843.40/181,265.10 = 101,160.40/x
  3. Step 3: Cross multiply
    120,843.40x = 181,265.10 × 101,160.40
  4. Step 4: Simplify right side
    120,843.40x = 18,336,850,022.04
  5. Step 5: Solve for x
    x = 18,336,850,022.04/120,843.40
  6. Step 6: Final answer
    x = 151,740.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.