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Finding the Fourth Proportional to 133,081.10, 199,621.65 and 123,458.30

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Solution

The fourth proportional to 133,081.10, 199,621.65 and 123,458.30 is: 185,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,081.10 : 199,621.65 = 123,458.30 : x
  2. Step 2: Convert to fraction form
    133,081.10/199,621.65 = 123,458.30/x
  3. Step 3: Cross multiply
    133,081.10x = 199,621.65 × 123,458.30
  4. Step 4: Simplify right side
    133,081.10x = 24,644,949,552.20
  5. Step 5: Solve for x
    x = 24,644,949,552.20/133,081.10
  6. Step 6: Final answer
    x = 185,187.45

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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.