Home / 141,101.68-194,720.16-77,439.64

Finding the Fourth Proportional to 141,101.68, 194,720.16 and 77,439.64

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Solution

The fourth proportional to 141,101.68, 194,720.16 and 77,439.64 is: 106,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,101.68 : 194,720.16 = 77,439.64 : x
  2. Step 2: Convert to fraction form
    141,101.68/194,720.16 = 77,439.64/x
  3. Step 3: Cross multiply
    141,101.68x = 194,720.16 × 77,439.64
  4. Step 4: Simplify right side
    141,101.68x = 15,079,059,091.14
  5. Step 5: Solve for x
    x = 15,079,059,091.14/141,101.68
  6. Step 6: Final answer
    x = 106,866.62

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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.