Home / 142,713.28-196,944.58-79,049.71

Finding the Fourth Proportional to 142,713.28, 196,944.58 and 79,049.71

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Solution

The fourth proportional to 142,713.28, 196,944.58 and 79,049.71 is: 109,088.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.28 : 196,944.58 = 79,049.71 : x
  2. Step 2: Convert to fraction form
    142,713.28/196,944.58 = 79,049.71/x
  3. Step 3: Cross multiply
    142,713.28x = 196,944.58 × 79,049.71
  4. Step 4: Simplify right side
    142,713.28x = 15,568,411,935.07
  5. Step 5: Solve for x
    x = 15,568,411,935.07/142,713.28
  6. Step 6: Final answer
    x = 109,088.74

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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.