Home / 142,926.56-197,233.68-79,270.28

Finding the Fourth Proportional to 142,926.56, 197,233.68 and 79,270.28

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Solution

The fourth proportional to 142,926.56, 197,233.68 and 79,270.28 is: 109,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,926.56 : 197,233.68 = 79,270.28 : x
  2. Step 2: Convert to fraction form
    142,926.56/197,233.68 = 79,270.28/x
  3. Step 3: Cross multiply
    142,926.56x = 197,233.68 × 79,270.28
  4. Step 4: Simplify right side
    142,926.56x = 15,634,769,039.03
  5. Step 5: Solve for x
    x = 15,634,769,039.03/142,926.56
  6. Step 6: Final answer
    x = 109,390.23

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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.