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Finding the Fourth Proportional to 129,979.63, 194,969.45 and 46,873.63

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Solution

The fourth proportional to 129,979.63, 194,969.45 and 46,873.63 is: 70,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,979.63 : 194,969.45 = 46,873.63 : x
  2. Step 2: Convert to fraction form
    129,979.63/194,969.45 = 46,873.63/x
  3. Step 3: Cross multiply
    129,979.63x = 194,969.45 × 46,873.63
  4. Step 4: Simplify right side
    129,979.63x = 9,138,925,860.60
  5. Step 5: Solve for x
    x = 9,138,925,860.60/129,979.63
  6. Step 6: Final answer
    x = 70,310.45

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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.