Home / 142,683.44-196,892.30-79,019.87

Finding the Fourth Proportional to 142,683.44, 196,892.30 and 79,019.87

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Solution

The fourth proportional to 142,683.44, 196,892.30 and 79,019.87 is: 109,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,683.44 : 196,892.30 = 79,019.87 : x
  2. Step 2: Convert to fraction form
    142,683.44/196,892.30 = 79,019.87/x
  3. Step 3: Cross multiply
    142,683.44x = 196,892.30 × 79,019.87
  4. Step 4: Simplify right side
    142,683.44x = 15,558,403,163.09
  5. Step 5: Solve for x
    x = 15,558,403,163.09/142,683.44
  6. Step 6: Final answer
    x = 109,041.41

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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.